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Finding the Fourth Proportional to 90,545,793.08, 135,818,689.61 and 90,545,793.08

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Solution

The fourth proportional to 90,545,793.08, 135,818,689.61 and 90,545,793.08 is: 135,818,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,545,793.08 : 135,818,689.61 = 90,545,793.08 : x
  2. Step 2: Convert to fraction form
    90,545,793.08/135,818,689.61 = 90,545,793.08/x
  3. Step 3: Cross multiply
    90,545,793.08x = 135,818,689.61 × 90,545,793.08
  4. Step 4: Simplify right side
    90,545,793.08x = 12,297,810,965,371,078
  5. Step 5: Solve for x
    x = 12,297,810,965,371,078/90,545,793.08
  6. Step 6: Final answer
    x = 135,818,689.61

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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.