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Finding the Fourth Proportional to 372,691.80, 559,037.70 and 223,392.60

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Solution

The fourth proportional to 372,691.80, 559,037.70 and 223,392.60 is: 335,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,691.80 : 559,037.70 = 223,392.60 : x
  2. Step 2: Convert to fraction form
    372,691.80/559,037.70 = 223,392.60/x
  3. Step 3: Cross multiply
    372,691.80x = 559,037.70 × 223,392.60
  4. Step 4: Simplify right side
    372,691.80x = 124,884,885,301.02
  5. Step 5: Solve for x
    x = 124,884,885,301.02/372,691.80
  6. Step 6: Final answer
    x = 335,088.90

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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.