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Finding the Fourth Proportional to 372,613.95, 514,199.12 and 217,591.88

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Solution

The fourth proportional to 372,613.95, 514,199.12 and 217,591.88 is: 300,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,613.95 : 514,199.12 = 217,591.88 : x
  2. Step 2: Convert to fraction form
    372,613.95/514,199.12 = 217,591.88/x
  3. Step 3: Cross multiply
    372,613.95x = 514,199.12 × 217,591.88
  4. Step 4: Simplify right side
    372,613.95x = 111,885,549,556.19
  5. Step 5: Solve for x
    x = 111,885,549,556.19/372,613.95
  6. Step 6: Final answer
    x = 300,272.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.