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Finding the Fourth Proportional to 69,702.76, 96,178.98 and 41,407.72

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Solution

The fourth proportional to 69,702.76, 96,178.98 and 41,407.72 is: 57,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,702.76 : 96,178.98 = 41,407.72 : x
  2. Step 2: Convert to fraction form
    69,702.76/96,178.98 = 41,407.72/x
  3. Step 3: Cross multiply
    69,702.76x = 96,178.98 × 41,407.72
  4. Step 4: Simplify right side
    69,702.76x = 3,982,552,273.73
  5. Step 5: Solve for x
    x = 3,982,552,273.73/69,702.76
  6. Step 6: Final answer
    x = 57,136.22

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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.