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Finding the Fourth Proportional to 136,691.60, 205,037.40 and 134,848.40

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Solution

The fourth proportional to 136,691.60, 205,037.40 and 134,848.40 is: 202,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,691.60 : 205,037.40 = 134,848.40 : x
  2. Step 2: Convert to fraction form
    136,691.60/205,037.40 = 134,848.40/x
  3. Step 3: Cross multiply
    136,691.60x = 205,037.40 × 134,848.40
  4. Step 4: Simplify right side
    136,691.60x = 27,648,965,330.16
  5. Step 5: Solve for x
    x = 27,648,965,330.16/136,691.60
  6. Step 6: Final answer
    x = 202,272.60

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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.