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Finding the Fourth Proportional to 127,718.49, 176,244.08 and 93,869.13

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Solution

The fourth proportional to 127,718.49, 176,244.08 and 93,869.13 is: 129,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,718.49 : 176,244.08 = 93,869.13 : x
  2. Step 2: Convert to fraction form
    127,718.49/176,244.08 = 93,869.13/x
  3. Step 3: Cross multiply
    127,718.49x = 176,244.08 × 93,869.13
  4. Step 4: Simplify right side
    127,718.49x = 16,543,877,987.90
  5. Step 5: Solve for x
    x = 16,543,877,987.90/127,718.49
  6. Step 6: Final answer
    x = 129,533.93

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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.