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Finding the Fourth Proportional to 88,480.96, 122,220.56 and 65,557.35

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Solution

The fourth proportional to 88,480.96, 122,220.56 and 65,557.35 is: 90,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,480.96 : 122,220.56 = 65,557.35 : x
  2. Step 2: Convert to fraction form
    88,480.96/122,220.56 = 65,557.35/x
  3. Step 3: Cross multiply
    88,480.96x = 122,220.56 × 65,557.35
  4. Step 4: Simplify right side
    88,480.96x = 8,012,456,193.01
  5. Step 5: Solve for x
    x = 8,012,456,193.01/88,480.96
  6. Step 6: Final answer
    x = 90,555.71

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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.