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Finding the Fourth Proportional to 67,052.60, 100,655.70 and 39,366.20

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Solution

The fourth proportional to 67,052.60, 100,655.70 and 39,366.20 is: 59,094.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,052.60 : 100,655.70 = 39,366.20 : x
  2. Step 2: Convert to fraction form
    67,052.60/100,655.70 = 39,366.20/x
  3. Step 3: Cross multiply
    67,052.60x = 100,655.70 × 39,366.20
  4. Step 4: Simplify right side
    67,052.60x = 3,962,432,417.34
  5. Step 5: Solve for x
    x = 3,962,432,417.34/67,052.60
  6. Step 6: Final answer
    x = 59,094.39

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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.