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Finding the Fourth Proportional to 102,593.88, 141,581.94 and 64,355.04

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Solution

The fourth proportional to 102,593.88, 141,581.94 and 64,355.04 is: 88,811.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,593.88 : 141,581.94 = 64,355.04 : x
  2. Step 2: Convert to fraction form
    102,593.88/141,581.94 = 64,355.04/x
  3. Step 3: Cross multiply
    102,593.88x = 141,581.94 × 64,355.04
  4. Step 4: Simplify right side
    102,593.88x = 9,111,511,411.98
  5. Step 5: Solve for x
    x = 9,111,511,411.98/102,593.88
  6. Step 6: Final answer
    x = 88,811.45

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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.