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Finding the Fourth Proportional to 156,615.89, 216,167.01 and 92,990.39

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Solution

The fourth proportional to 156,615.89, 216,167.01 and 92,990.39 is: 128,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,615.89 : 216,167.01 = 92,990.39 : x
  2. Step 2: Convert to fraction form
    156,615.89/216,167.01 = 92,990.39/x
  3. Step 3: Cross multiply
    156,615.89x = 216,167.01 × 92,990.39
  4. Step 4: Simplify right side
    156,615.89x = 20,101,454,565.03
  5. Step 5: Solve for x
    x = 20,101,454,565.03/156,615.89
  6. Step 6: Final answer
    x = 128,348.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.