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Finding the Fourth Proportional to 114,920.48, 172,024.32 and 62,199.20

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Solution

The fourth proportional to 114,920.48, 172,024.32 and 62,199.20 is: 93,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,920.48 : 172,024.32 = 62,199.20 : x
  2. Step 2: Convert to fraction form
    114,920.48/172,024.32 = 62,199.20/x
  3. Step 3: Cross multiply
    114,920.48x = 172,024.32 × 62,199.20
  4. Step 4: Simplify right side
    114,920.48x = 10,699,775,084.54
  5. Step 5: Solve for x
    x = 10,699,775,084.54/114,920.48
  6. Step 6: Final answer
    x = 93,105.90

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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.