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Finding the Fourth Proportional to 291,265.02, 436,337.76 and 178,616.76

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Solution

The fourth proportional to 291,265.02, 436,337.76 and 178,616.76 is: 267,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,265.02 : 436,337.76 = 178,616.76 : x
  2. Step 2: Convert to fraction form
    291,265.02/436,337.76 = 178,616.76/x
  3. Step 3: Cross multiply
    291,265.02x = 436,337.76 × 178,616.76
  4. Step 4: Simplify right side
    291,265.02x = 77,937,236,956.86
  5. Step 5: Solve for x
    x = 77,937,236,956.86/291,265.02
  6. Step 6: Final answer
    x = 267,581.86

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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.