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Finding the Fourth Proportional to 374,172.69, 516,358.17 and 202,090.71

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Solution

The fourth proportional to 374,172.69, 516,358.17 and 202,090.71 is: 278,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,172.69 : 516,358.17 = 202,090.71 : x
  2. Step 2: Convert to fraction form
    374,172.69/516,358.17 = 202,090.71/x
  3. Step 3: Cross multiply
    374,172.69x = 516,358.17 × 202,090.71
  4. Step 4: Simplify right side
    374,172.69x = 104,351,189,189.60
  5. Step 5: Solve for x
    x = 104,351,189,189.60/374,172.69
  6. Step 6: Final answer
    x = 278,885.10

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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.