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Finding the Fourth Proportional to 40,701.70, 61,052.55 and 40,312.90

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Solution

The fourth proportional to 40,701.70, 61,052.55 and 40,312.90 is: 60,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.70 : 61,052.55 = 40,312.90 : x
  2. Step 2: Convert to fraction form
    40,701.70/61,052.55 = 40,312.90/x
  3. Step 3: Cross multiply
    40,701.70x = 61,052.55 × 40,312.90
  4. Step 4: Simplify right side
    40,701.70x = 2,461,205,342.90
  5. Step 5: Solve for x
    x = 2,461,205,342.90/40,701.70
  6. Step 6: Final answer
    x = 60,469.35

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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.