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Finding the Fourth Proportional to 156,967.93, 235,446.69 and 68,221.52

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Solution

The fourth proportional to 156,967.93, 235,446.69 and 68,221.52 is: 102,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,967.93 : 235,446.69 = 68,221.52 : x
  2. Step 2: Convert to fraction form
    156,967.93/235,446.69 = 68,221.52/x
  3. Step 3: Cross multiply
    156,967.93x = 235,446.69 × 68,221.52
  4. Step 4: Simplify right side
    156,967.93x = 16,062,531,070.77
  5. Step 5: Solve for x
    x = 16,062,531,070.77/156,967.93
  6. Step 6: Final answer
    x = 102,330.02

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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.