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Finding the Fourth Proportional to 316,373.43, 474,561.97 and 129,384.93

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Solution

The fourth proportional to 316,373.43, 474,561.97 and 129,384.93 is: 194,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,373.43 : 474,561.97 = 129,384.93 : x
  2. Step 2: Convert to fraction form
    316,373.43/474,561.97 = 129,384.93/x
  3. Step 3: Cross multiply
    316,373.43x = 474,561.97 × 129,384.93
  4. Step 4: Simplify right side
    316,373.43x = 61,401,167,269.11
  5. Step 5: Solve for x
    x = 61,401,167,269.11/316,373.43
  6. Step 6: Final answer
    x = 194,078.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.