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Finding the Fourth Proportional to 115,051.92, 172,363.92 and 62,505.60

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Solution

The fourth proportional to 115,051.92, 172,363.92 and 62,505.60 is: 93,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,051.92 : 172,363.92 = 62,505.60 : x
  2. Step 2: Convert to fraction form
    115,051.92/172,363.92 = 62,505.60/x
  3. Step 3: Cross multiply
    115,051.92x = 172,363.92 × 62,505.60
  4. Step 4: Simplify right side
    115,051.92x = 10,773,710,237.95
  5. Step 5: Solve for x
    x = 10,773,710,237.95/115,051.92
  6. Step 6: Final answer
    x = 93,642.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.