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Finding the Fourth Proportional to 372,838.42, 514,341.12 and 252,021.88

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Solution

The fourth proportional to 372,838.42, 514,341.12 and 252,021.88 is: 347,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,838.42 : 514,341.12 = 252,021.88 : x
  2. Step 2: Convert to fraction form
    372,838.42/514,341.12 = 252,021.88/x
  3. Step 3: Cross multiply
    372,838.42x = 514,341.12 × 252,021.88
  4. Step 4: Simplify right side
    372,838.42x = 129,625,216,023.71
  5. Step 5: Solve for x
    x = 129,625,216,023.71/372,838.42
  6. Step 6: Final answer
    x = 347,671.29

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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.