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Finding the Fourth Proportional to 267,316.40, 401,082.60 and 117,585.20

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Solution

The fourth proportional to 267,316.40, 401,082.60 and 117,585.20 is: 176,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,316.40 : 401,082.60 = 117,585.20 : x
  2. Step 2: Convert to fraction form
    267,316.40/401,082.60 = 117,585.20/x
  3. Step 3: Cross multiply
    267,316.40x = 401,082.60 × 117,585.20
  4. Step 4: Simplify right side
    267,316.40x = 47,161,377,737.52
  5. Step 5: Solve for x
    x = 47,161,377,737.52/267,316.40
  6. Step 6: Final answer
    x = 176,425.31

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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.