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Finding the Fourth Proportional to 156,557.56, 216,034.90 and 88,579.68

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Solution

The fourth proportional to 156,557.56, 216,034.90 and 88,579.68 is: 122,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,557.56 : 216,034.90 = 88,579.68 : x
  2. Step 2: Convert to fraction form
    156,557.56/216,034.90 = 88,579.68/x
  3. Step 3: Cross multiply
    156,557.56x = 216,034.90 × 88,579.68
  4. Step 4: Simplify right side
    156,557.56x = 19,136,301,279.25
  5. Step 5: Solve for x
    x = 19,136,301,279.25/156,557.56
  6. Step 6: Final answer
    x = 122,231.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.