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Finding the Fourth Proportional to 156,522.51, 234,734.49 and 51,316.88

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Solution

The fourth proportional to 156,522.51, 234,734.49 and 51,316.88 is: 76,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,522.51 : 234,734.49 = 51,316.88 : x
  2. Step 2: Convert to fraction form
    156,522.51/234,734.49 = 51,316.88/x
  3. Step 3: Cross multiply
    156,522.51x = 234,734.49 × 51,316.88
  4. Step 4: Simplify right side
    156,522.51x = 12,045,840,481.52
  5. Step 5: Solve for x
    x = 12,045,840,481.52/156,522.51
  6. Step 6: Final answer
    x = 76,959.16

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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.