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Finding the Fourth Proportional to 96,345.53, 132,945.74 and 55,515.61

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Solution

The fourth proportional to 96,345.53, 132,945.74 and 55,515.61 is: 76,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,345.53 : 132,945.74 = 55,515.61 : x
  2. Step 2: Convert to fraction form
    96,345.53/132,945.74 = 55,515.61/x
  3. Step 3: Cross multiply
    96,345.53x = 132,945.74 × 55,515.61
  4. Step 4: Simplify right side
    96,345.53x = 7,380,563,451.24
  5. Step 5: Solve for x
    x = 7,380,563,451.24/96,345.53
  6. Step 6: Final answer
    x = 76,605.15

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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.