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Finding the Fourth Proportional to 136,565,794.60, 204,848,691.90 and 120,781,996.90

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Solution

The fourth proportional to 136,565,794.60, 204,848,691.90 and 120,781,996.90 is: 181,172,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,565,794.60 : 204,848,691.90 = 120,781,996.90 : x
  2. Step 2: Convert to fraction form
    136,565,794.60/204,848,691.90 = 120,781,996.90/x
  3. Step 3: Cross multiply
    136,565,794.60x = 204,848,691.90 × 120,781,996.90
  4. Step 4: Simplify right side
    136,565,794.60x = 24,742,034,070,034,856
  5. Step 5: Solve for x
    x = 24,742,034,070,034,856/136,565,794.60
  6. Step 6: Final answer
    x = 181,172,995.35

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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.