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Finding the Fourth Proportional to 124,490.56, 171,801.12 and 67,905.04

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Solution

The fourth proportional to 124,490.56, 171,801.12 and 67,905.04 is: 93,711.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,490.56 : 171,801.12 = 67,905.04 : x
  2. Step 2: Convert to fraction form
    124,490.56/171,801.12 = 67,905.04/x
  3. Step 3: Cross multiply
    124,490.56x = 171,801.12 × 67,905.04
  4. Step 4: Simplify right side
    124,490.56x = 11,666,161,925.64
  5. Step 5: Solve for x
    x = 11,666,161,925.64/124,490.56
  6. Step 6: Final answer
    x = 93,711.22

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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.