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Finding the Fourth Proportional to 127,666.97, 176,211.45 and 73,943.31

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Solution

The fourth proportional to 127,666.97, 176,211.45 and 73,943.31 is: 102,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,666.97 : 176,211.45 = 73,943.31 : x
  2. Step 2: Convert to fraction form
    127,666.97/176,211.45 = 73,943.31/x
  3. Step 3: Cross multiply
    127,666.97x = 176,211.45 × 73,943.31
  4. Step 4: Simplify right side
    127,666.97x = 13,029,657,872.90
  5. Step 5: Solve for x
    x = 13,029,657,872.90/127,666.97
  6. Step 6: Final answer
    x = 102,059.74

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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.