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Finding the Fourth Proportional to 99,740,582.40, 149,484,902.40 and 48,512,294.40

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Solution

The fourth proportional to 99,740,582.40, 149,484,902.40 and 48,512,294.40 is: 72,707,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,740,582.40 : 149,484,902.40 = 48,512,294.40 : x
  2. Step 2: Convert to fraction form
    99,740,582.40/149,484,902.40 = 48,512,294.40/x
  3. Step 3: Cross multiply
    99,740,582.40x = 149,484,902.40 × 48,512,294.40
  4. Step 4: Simplify right side
    99,740,582.40x = 7,251,855,593,584,067
  5. Step 5: Solve for x
    x = 7,251,855,593,584,067/99,740,582.40
  6. Step 6: Final answer
    x = 72,707,171.13

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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.