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Finding the Fourth Proportional to 126,138.01, 174,061.56 and 69,548.17

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Solution

The fourth proportional to 126,138.01, 174,061.56 and 69,548.17 is: 95,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138.01 : 174,061.56 = 69,548.17 : x
  2. Step 2: Convert to fraction form
    126,138.01/174,061.56 = 69,548.17/x
  3. Step 3: Cross multiply
    126,138.01x = 174,061.56 × 69,548.17
  4. Step 4: Simplify right side
    126,138.01x = 12,105,662,965.35
  5. Step 5: Solve for x
    x = 12,105,662,965.35/126,138.01
  6. Step 6: Final answer
    x = 95,971.57

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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.