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Finding the Fourth Proportional to 88,751.48, 122,472.12 and 48,457.20

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Solution

The fourth proportional to 88,751.48, 122,472.12 and 48,457.20 is: 66,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,751.48 : 122,472.12 = 48,457.20 : x
  2. Step 2: Convert to fraction form
    88,751.48/122,472.12 = 48,457.20/x
  3. Step 3: Cross multiply
    88,751.48x = 122,472.12 × 48,457.20
  4. Step 4: Simplify right side
    88,751.48x = 5,934,656,013.26
  5. Step 5: Solve for x
    x = 5,934,656,013.26/88,751.48
  6. Step 6: Final answer
    x = 66,868.25

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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.