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Finding the Fourth Proportional to 69,758.16, 96,230.76 and 45,573.28

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Solution

The fourth proportional to 69,758.16, 96,230.76 and 45,573.28 is: 62,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,758.16 : 96,230.76 = 45,573.28 : x
  2. Step 2: Convert to fraction form
    69,758.16/96,230.76 = 45,573.28/x
  3. Step 3: Cross multiply
    69,758.16x = 96,230.76 × 45,573.28
  4. Step 4: Simplify right side
    69,758.16x = 4,385,551,370.09
  5. Step 5: Solve for x
    x = 4,385,551,370.09/69,758.16
  6. Step 6: Final answer
    x = 62,867.93

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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.