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Finding the Fourth Proportional to 264,694.60, 396,956.58 and 87,159.34

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Solution

The fourth proportional to 264,694.60, 396,956.58 and 87,159.34 is: 130,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,694.60 : 396,956.58 = 87,159.34 : x
  2. Step 2: Convert to fraction form
    264,694.60/396,956.58 = 87,159.34/x
  3. Step 3: Cross multiply
    264,694.60x = 396,956.58 × 87,159.34
  4. Step 4: Simplify right side
    264,694.60x = 34,598,473,521.46
  5. Step 5: Solve for x
    x = 34,598,473,521.46/264,694.60
  6. Step 6: Final answer
    x = 130,710.92

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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.