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Finding the Fourth Proportional to 104,868.40, 156,510.32 and 97,757.90

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Solution

The fourth proportional to 104,868.40, 156,510.32 and 97,757.90 is: 145,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,868.40 : 156,510.32 = 97,757.90 : x
  2. Step 2: Convert to fraction form
    104,868.40/156,510.32 = 97,757.90/x
  3. Step 3: Cross multiply
    104,868.40x = 156,510.32 × 97,757.90
  4. Step 4: Simplify right side
    104,868.40x = 15,300,120,211.53
  5. Step 5: Solve for x
    x = 15,300,120,211.53/104,868.40
  6. Step 6: Final answer
    x = 145,898.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.