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Finding the Fourth Proportional to 126,029.88, 173,921.24 and 69,440.76

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Solution

The fourth proportional to 126,029.88, 173,921.24 and 69,440.76 is: 95,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029.88 : 173,921.24 = 69,440.76 : x
  2. Step 2: Convert to fraction form
    126,029.88/173,921.24 = 69,440.76/x
  3. Step 3: Cross multiply
    126,029.88x = 173,921.24 × 69,440.76
  4. Step 4: Simplify right side
    126,029.88x = 12,077,223,085.74
  5. Step 5: Solve for x
    x = 12,077,223,085.74/126,029.88
  6. Step 6: Final answer
    x = 95,828.25

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.