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Finding the Fourth Proportional to 90,730,920.15, 136,096,380.23 and 90,730,920.15

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Solution

The fourth proportional to 90,730,920.15, 136,096,380.23 and 90,730,920.15 is: 136,096,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730,920.15 : 136,096,380.23 = 90,730,920.15 : x
  2. Step 2: Convert to fraction form
    90,730,920.15/136,096,380.23 = 90,730,920.15/x
  3. Step 3: Cross multiply
    90,730,920.15x = 136,096,380.23 × 90,730,920.15
  4. Step 4: Simplify right side
    90,730,920.15x = 12,348,149,806,898,514
  5. Step 5: Solve for x
    x = 12,348,149,806,898,514/90,730,920.15
  6. Step 6: Final answer
    x = 136,096,380.23

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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.