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Finding the Fourth Proportional to 156,861.95, 216,468.92 and 88,891.86

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Solution

The fourth proportional to 156,861.95, 216,468.92 and 88,891.86 is: 122,670.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,861.95 : 216,468.92 = 88,891.86 : x
  2. Step 2: Convert to fraction form
    156,861.95/216,468.92 = 88,891.86/x
  3. Step 3: Cross multiply
    156,861.95x = 216,468.92 × 88,891.86
  4. Step 4: Simplify right side
    156,861.95x = 19,242,324,486.53
  5. Step 5: Solve for x
    x = 19,242,324,486.53/156,861.95
  6. Step 6: Final answer
    x = 122,670.44

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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.