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Finding the Fourth Proportional to 71,220.48, 107,311.50 and 59,012.16

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Solution

The fourth proportional to 71,220.48, 107,311.50 and 59,012.16 is: 88,916.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,220.48 : 107,311.50 = 59,012.16 : x
  2. Step 2: Convert to fraction form
    71,220.48/107,311.50 = 59,012.16/x
  3. Step 3: Cross multiply
    71,220.48x = 107,311.50 × 59,012.16
  4. Step 4: Simplify right side
    71,220.48x = 6,332,683,407.84
  5. Step 5: Solve for x
    x = 6,332,683,407.84/71,220.48
  6. Step 6: Final answer
    x = 88,916.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.