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Finding the Fourth Proportional to 156,701.80, 235,052.70 and 38,374.30

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Solution

The fourth proportional to 156,701.80, 235,052.70 and 38,374.30 is: 57,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,701.80 : 235,052.70 = 38,374.30 : x
  2. Step 2: Convert to fraction form
    156,701.80/235,052.70 = 38,374.30/x
  3. Step 3: Cross multiply
    156,701.80x = 235,052.70 × 38,374.30
  4. Step 4: Simplify right side
    156,701.80x = 9,019,982,825.61
  5. Step 5: Solve for x
    x = 9,019,982,825.61/156,701.80
  6. Step 6: Final answer
    x = 57,561.45

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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.