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Finding the Fourth Proportional to 85,998,410.40, 120,737,896.80 and 85,998,410.40

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Solution

The fourth proportional to 85,998,410.40, 120,737,896.80 and 85,998,410.40 is: 120,737,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,998,410.40 : 120,737,896.80 = 85,998,410.40 : x
  2. Step 2: Convert to fraction form
    85,998,410.40/120,737,896.80 = 85,998,410.40/x
  3. Step 3: Cross multiply
    85,998,410.40x = 120,737,896.80 × 85,998,410.40
  4. Step 4: Simplify right side
    85,998,410.40x = 10,383,267,199,839,248
  5. Step 5: Solve for x
    x = 10,383,267,199,839,248/85,998,410.40
  6. Step 6: Final answer
    x = 120,737,896.80

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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.