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Finding the Fourth Proportional to 115,008.92, 158,716.52 and 64,024.28

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Solution

The fourth proportional to 115,008.92, 158,716.52 and 64,024.28 is: 88,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,008.92 : 158,716.52 = 64,024.28 : x
  2. Step 2: Convert to fraction form
    115,008.92/158,716.52 = 64,024.28/x
  3. Step 3: Cross multiply
    115,008.92x = 158,716.52 × 64,024.28
  4. Step 4: Simplify right side
    115,008.92x = 10,161,710,917.11
  5. Step 5: Solve for x
    x = 10,161,710,917.11/115,008.92
  6. Step 6: Final answer
    x = 88,355.85

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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.