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Finding the Fourth Proportional to 374,145.82, 516,332.57 and 204,390.88

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Solution

The fourth proportional to 374,145.82, 516,332.57 and 204,390.88 is: 282,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,145.82 : 516,332.57 = 204,390.88 : x
  2. Step 2: Convert to fraction form
    374,145.82/516,332.57 = 204,390.88/x
  3. Step 3: Cross multiply
    374,145.82x = 516,332.57 × 204,390.88
  4. Step 4: Simplify right side
    374,145.82x = 105,533,668,354.96
  5. Step 5: Solve for x
    x = 105,533,668,354.96/374,145.82
  6. Step 6: Final answer
    x = 282,065.61

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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.