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Finding the Fourth Proportional to 372,909.63, 559,364.51 and 123,591.63

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Solution

The fourth proportional to 372,909.63, 559,364.51 and 123,591.63 is: 185,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,909.63 : 559,364.51 = 123,591.63 : x
  2. Step 2: Convert to fraction form
    372,909.63/559,364.51 = 123,591.63/x
  3. Step 3: Cross multiply
    372,909.63x = 559,364.51 × 123,591.63
  4. Step 4: Simplify right side
    372,909.63x = 69,132,771,555.05
  5. Step 5: Solve for x
    x = 69,132,771,555.05/372,909.63
  6. Step 6: Final answer
    x = 185,387.47

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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.