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Finding the Fourth Proportional to 136,915.68, 205,357.93 and 37,083.66

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Solution

The fourth proportional to 136,915.68, 205,357.93 and 37,083.66 is: 55,621.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,915.68 : 205,357.93 = 37,083.66 : x
  2. Step 2: Convert to fraction form
    136,915.68/205,357.93 = 37,083.66/x
  3. Step 3: Cross multiply
    136,915.68x = 205,357.93 × 37,083.66
  4. Step 4: Simplify right side
    136,915.68x = 7,615,423,654.42
  5. Step 5: Solve for x
    x = 7,615,423,654.42/136,915.68
  6. Step 6: Final answer
    x = 55,621.27

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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.