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Finding the Fourth Proportional to 372,265.92, 558,388.80 and 91,785.60

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Solution

The fourth proportional to 372,265.92, 558,388.80 and 91,785.60 is: 137,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,265.92 : 558,388.80 = 91,785.60 : x
  2. Step 2: Convert to fraction form
    372,265.92/558,388.80 = 91,785.60/x
  3. Step 3: Cross multiply
    372,265.92x = 558,388.80 × 91,785.60
  4. Step 4: Simplify right side
    372,265.92x = 51,252,051,041.28
  5. Step 5: Solve for x
    x = 51,252,051,041.28/372,265.92
  6. Step 6: Final answer
    x = 137,675.91

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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.