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Finding the Fourth Proportional to 372,641.02, 514,078.47 and 251,743.42

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Solution

The fourth proportional to 372,641.02, 514,078.47 and 251,743.42 is: 347,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,641.02 : 514,078.47 = 251,743.42 : x
  2. Step 2: Convert to fraction form
    372,641.02/514,078.47 = 251,743.42/x
  3. Step 3: Cross multiply
    372,641.02x = 514,078.47 × 251,743.42
  4. Step 4: Simplify right side
    372,641.02x = 129,415,872,186.17
  5. Step 5: Solve for x
    x = 129,415,872,186.17/372,641.02
  6. Step 6: Final answer
    x = 347,293.68

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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.