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Finding the Fourth Proportional to 136,487,807.92, 204,731,712.42 and 45,611,396.92

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Solution

The fourth proportional to 136,487,807.92, 204,731,712.42 and 45,611,396.92 is: 68,417,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,487,807.92 : 204,731,712.42 = 45,611,396.92 : x
  2. Step 2: Convert to fraction form
    136,487,807.92/204,731,712.42 = 45,611,396.92/x
  3. Step 3: Cross multiply
    136,487,807.92x = 204,731,712.42 × 45,611,396.92
  4. Step 4: Simplify right side
    136,487,807.92x = 9,338,099,397,299,914
  5. Step 5: Solve for x
    x = 9,338,099,397,299,914/136,487,807.92
  6. Step 6: Final answer
    x = 68,417,095.56

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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.