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Finding the Fourth Proportional to 136,590.60, 204,885.16 and 36,742.66

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Solution

The fourth proportional to 136,590.60, 204,885.16 and 36,742.66 is: 55,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,590.60 : 204,885.16 = 36,742.66 : x
  2. Step 2: Convert to fraction form
    136,590.60/204,885.16 = 36,742.66/x
  3. Step 3: Cross multiply
    136,590.60x = 204,885.16 × 36,742.66
  4. Step 4: Simplify right side
    136,590.60x = 7,528,025,772.93
  5. Step 5: Solve for x
    x = 7,528,025,772.93/136,590.60
  6. Step 6: Final answer
    x = 55,113.79

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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.