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Finding the Fourth Proportional to 263,090.76, 393,648.80 and 156,082.92

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Solution

The fourth proportional to 263,090.76, 393,648.80 and 156,082.92 is: 233,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,090.76 : 393,648.80 = 156,082.92 : x
  2. Step 2: Convert to fraction form
    263,090.76/393,648.80 = 156,082.92/x
  3. Step 3: Cross multiply
    263,090.76x = 393,648.80 × 156,082.92
  4. Step 4: Simplify right side
    263,090.76x = 61,441,854,158.50
  5. Step 5: Solve for x
    x = 61,441,854,158.50/263,090.76
  6. Step 6: Final answer
    x = 233,538.62

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1.5x scale

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.