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Finding the Fourth Proportional to 156,906.65, 235,359.98 and 93,921.05

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Solution

The fourth proportional to 156,906.65, 235,359.98 and 93,921.05 is: 140,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,906.65 : 235,359.98 = 93,921.05 : x
  2. Step 2: Convert to fraction form
    156,906.65/235,359.98 = 93,921.05/x
  3. Step 3: Cross multiply
    156,906.65x = 235,359.98 × 93,921.05
  4. Step 4: Simplify right side
    156,906.65x = 22,105,256,449.58
  5. Step 5: Solve for x
    x = 22,105,256,449.58/156,906.65
  6. Step 6: Final answer
    x = 140,881.58

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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.