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Finding the Fourth Proportional to 65,116.70, 97,869.45 and 56,563.10

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Solution

The fourth proportional to 65,116.70, 97,869.45 and 56,563.10 is: 85,013.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,116.70 : 97,869.45 = 56,563.10 : x
  2. Step 2: Convert to fraction form
    65,116.70/97,869.45 = 56,563.10/x
  3. Step 3: Cross multiply
    65,116.70x = 97,869.45 × 56,563.10
  4. Step 4: Simplify right side
    65,116.70x = 5,535,799,487.30
  5. Step 5: Solve for x
    x = 5,535,799,487.30/65,116.70
  6. Step 6: Final answer
    x = 85,013.51

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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.