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Finding the Fourth Proportional to 136,881.42, 205,286.48 and 57,955.02

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Solution

The fourth proportional to 136,881.42, 205,286.48 and 57,955.02 is: 86,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,881.42 : 205,286.48 = 57,955.02 : x
  2. Step 2: Convert to fraction form
    136,881.42/205,286.48 = 57,955.02/x
  3. Step 3: Cross multiply
    136,881.42x = 205,286.48 × 57,955.02
  4. Step 4: Simplify right side
    136,881.42x = 11,897,382,054.13
  5. Step 5: Solve for x
    x = 11,897,382,054.13/136,881.42
  6. Step 6: Final answer
    x = 86,917.44

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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.