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Finding the Fourth Proportional to 368,708.76, 553,177.96 and 132,053.49

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Solution

The fourth proportional to 368,708.76, 553,177.96 and 132,053.49 is: 198,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,708.76 : 553,177.96 = 132,053.49 : x
  2. Step 2: Convert to fraction form
    368,708.76/553,177.96 = 132,053.49/x
  3. Step 3: Cross multiply
    368,708.76x = 553,177.96 × 132,053.49
  4. Step 4: Simplify right side
    368,708.76x = 73,049,079,878.95
  5. Step 5: Solve for x
    x = 73,049,079,878.95/368,708.76
  6. Step 6: Final answer
    x = 198,121.36

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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.