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Finding the Fourth Proportional to 374,379.81, 516,636.54 and 204,615.15

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Solution

The fourth proportional to 374,379.81, 516,636.54 and 204,615.15 is: 282,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,379.81 : 516,636.54 = 204,615.15 : x
  2. Step 2: Convert to fraction form
    374,379.81/516,636.54 = 204,615.15/x
  3. Step 3: Cross multiply
    374,379.81x = 516,636.54 × 204,615.15
  4. Step 4: Simplify right side
    374,379.81x = 105,711,663,127.58
  5. Step 5: Solve for x
    x = 105,711,663,127.58/374,379.81
  6. Step 6: Final answer
    x = 282,364.75

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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.