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Finding the Fourth Proportional to 136,551,491.60, 204,827,237.40 and 120,767,693.90

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Solution

The fourth proportional to 136,551,491.60, 204,827,237.40 and 120,767,693.90 is: 181,151,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,551,491.60 : 204,827,237.40 = 120,767,693.90 : x
  2. Step 2: Convert to fraction form
    136,551,491.60/204,827,237.40 = 120,767,693.90/x
  3. Step 3: Cross multiply
    136,551,491.60x = 204,827,237.40 × 120,767,693.90
  4. Step 4: Simplify right side
    136,551,491.60x = 24,736,513,108,705,832
  5. Step 5: Solve for x
    x = 24,736,513,108,705,832/136,551,491.60
  6. Step 6: Final answer
    x = 181,151,540.85

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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.