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Finding the Fourth Proportional to 88,751.90, 122,473.05 and 48,457.89

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Solution

The fourth proportional to 88,751.90, 122,473.05 and 48,457.89 is: 66,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,751.90 : 122,473.05 = 48,457.89 : x
  2. Step 2: Convert to fraction form
    88,751.90/122,473.05 = 48,457.89/x
  3. Step 3: Cross multiply
    88,751.90x = 122,473.05 × 48,457.89
  4. Step 4: Simplify right side
    88,751.90x = 5,934,785,584.86
  5. Step 5: Solve for x
    x = 5,934,785,584.86/88,751.90
  6. Step 6: Final answer
    x = 66,869.40

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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.