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Finding the Fourth Proportional to 65,487.60, 98,490.60 and 58,748.40

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Solution

The fourth proportional to 65,487.60, 98,490.60 and 58,748.40 is: 88,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,487.60 : 98,490.60 = 58,748.40 : x
  2. Step 2: Convert to fraction form
    65,487.60/98,490.60 = 58,748.40/x
  3. Step 3: Cross multiply
    65,487.60x = 98,490.60 × 58,748.40
  4. Step 4: Simplify right side
    65,487.60x = 5,786,165,165.04
  5. Step 5: Solve for x
    x = 5,786,165,165.04/65,487.60
  6. Step 6: Final answer
    x = 88,355.13

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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.