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Finding the Fourth Proportional to 437,082.60, 655,740.54 and 156,628.20

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Solution

The fourth proportional to 437,082.60, 655,740.54 and 156,628.20 is: 234,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,082.60 : 655,740.54 = 156,628.20 : x
  2. Step 2: Convert to fraction form
    437,082.60/655,740.54 = 156,628.20/x
  3. Step 3: Cross multiply
    437,082.60x = 655,740.54 × 156,628.20
  4. Step 4: Simplify right side
    437,082.60x = 102,707,460,447.23
  5. Step 5: Solve for x
    x = 102,707,460,447.23/437,082.60
  6. Step 6: Final answer
    x = 234,984.10

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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.