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Finding the Fourth Proportional to 159,492.76, 239,276.20 and 54,312.64

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Solution

The fourth proportional to 159,492.76, 239,276.20 and 54,312.64 is: 81,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,492.76 : 239,276.20 = 54,312.64 : x
  2. Step 2: Convert to fraction form
    159,492.76/239,276.20 = 54,312.64/x
  3. Step 3: Cross multiply
    159,492.76x = 239,276.20 × 54,312.64
  4. Step 4: Simplify right side
    159,492.76x = 12,995,722,111.17
  5. Step 5: Solve for x
    x = 12,995,722,111.17/159,492.76
  6. Step 6: Final answer
    x = 81,481.58

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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.