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Finding the Fourth Proportional to 99,648,003.70, 149,472,005.55 and 99,648,003.70

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Solution

The fourth proportional to 99,648,003.70, 149,472,005.55 and 99,648,003.70 is: 149,472,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,003.70 : 149,472,005.55 = 99,648,003.70 : x
  2. Step 2: Convert to fraction form
    99,648,003.70/149,472,005.55 = 99,648,003.70/x
  3. Step 3: Cross multiply
    99,648,003.70x = 149,472,005.55 × 99,648,003.70
  4. Step 4: Simplify right side
    99,648,003.70x = 14,894,586,962,092,822
  5. Step 5: Solve for x
    x = 14,894,586,962,092,822/99,648,003.70
  6. Step 6: Final answer
    x = 149,472,005.55

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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.