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Finding the Fourth Proportional to 156,670.54, 216,182.54 and 89,589.58

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Solution

The fourth proportional to 156,670.54, 216,182.54 and 89,589.58 is: 123,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,670.54 : 216,182.54 = 89,589.58 : x
  2. Step 2: Convert to fraction form
    156,670.54/216,182.54 = 89,589.58/x
  3. Step 3: Cross multiply
    156,670.54x = 216,182.54 × 89,589.58
  4. Step 4: Simplify right side
    156,670.54x = 19,367,702,961.93
  5. Step 5: Solve for x
    x = 19,367,702,961.93/156,670.54
  6. Step 6: Final answer
    x = 123,620.58

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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.