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Finding the Fourth Proportional to 374,273.92, 516,497.46 and 213,129

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Solution

The fourth proportional to 374,273.92, 516,497.46 and 213,129 is: 294,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,273.92 : 516,497.46 = 213,129 : x
  2. Step 2: Convert to fraction form
    374,273.92/516,497.46 = 213,129/x
  3. Step 3: Cross multiply
    374,273.92x = 516,497.46 × 213,129
  4. Step 4: Simplify right side
    374,273.92x = 110,080,587,152.34
  5. Step 5: Solve for x
    x = 110,080,587,152.34/374,273.92
  6. Step 6: Final answer
    x = 294,117.71

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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.