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Finding the Fourth Proportional to 90,725,793.90, 136,088,690.85 and 90,725,793.90

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Solution

The fourth proportional to 90,725,793.90, 136,088,690.85 and 90,725,793.90 is: 136,088,690.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,725,793.90 : 136,088,690.85 = 90,725,793.90 : x
  2. Step 2: Convert to fraction form
    90,725,793.90/136,088,690.85 = 90,725,793.90/x
  3. Step 3: Cross multiply
    90,725,793.90x = 136,088,690.85 × 90,725,793.90
  4. Step 4: Simplify right side
    90,725,793.90x = 12,346,754,518,177,916
  5. Step 5: Solve for x
    x = 12,346,754,518,177,916/90,725,793.90
  6. Step 6: Final answer
    x = 136,088,690.85

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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.