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Finding the Fourth Proportional to 126,364.88, 174,384.84 and 69,776.12

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Solution

The fourth proportional to 126,364.88, 174,384.84 and 69,776.12 is: 96,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,364.88 : 174,384.84 = 69,776.12 : x
  2. Step 2: Convert to fraction form
    126,364.88/174,384.84 = 69,776.12/x
  3. Step 3: Cross multiply
    126,364.88x = 174,384.84 × 69,776.12
  4. Step 4: Simplify right side
    126,364.88x = 12,167,897,522.02
  5. Step 5: Solve for x
    x = 12,167,897,522.02/126,364.88
  6. Step 6: Final answer
    x = 96,291.77

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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.