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Finding the Fourth Proportional to 85,998,414.90, 120,737,903.10 and 85,998,414.90

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Solution

The fourth proportional to 85,998,414.90, 120,737,903.10 and 85,998,414.90 is: 120,737,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,998,414.90 : 120,737,903.10 = 85,998,414.90 : x
  2. Step 2: Convert to fraction form
    85,998,414.90/120,737,903.10 = 85,998,414.90/x
  3. Step 3: Cross multiply
    85,998,414.90x = 120,737,903.10 × 85,998,414.90
  4. Step 4: Simplify right side
    85,998,414.90x = 10,383,268,284,949,796
  5. Step 5: Solve for x
    x = 10,383,268,284,949,796/85,998,414.90
  6. Step 6: Final answer
    x = 120,737,903.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.