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Finding the Fourth Proportional to 156,691.80, 235,037.70 and 38,364.30

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Solution

The fourth proportional to 156,691.80, 235,037.70 and 38,364.30 is: 57,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.80 : 235,037.70 = 38,364.30 : x
  2. Step 2: Convert to fraction form
    156,691.80/235,037.70 = 38,364.30/x
  3. Step 3: Cross multiply
    156,691.80x = 235,037.70 × 38,364.30
  4. Step 4: Simplify right side
    156,691.80x = 9,017,056,834.11
  5. Step 5: Solve for x
    x = 9,017,056,834.11/156,691.80
  6. Step 6: Final answer
    x = 57,546.45

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1.5x scale

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.