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Finding the Fourth Proportional to 88,672.15, 122,365.15 and 48,385.92

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Solution

The fourth proportional to 88,672.15, 122,365.15 and 48,385.92 is: 66,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,672.15 : 122,365.15 = 48,385.92 : x
  2. Step 2: Convert to fraction form
    88,672.15/122,365.15 = 48,385.92/x
  3. Step 3: Cross multiply
    88,672.15x = 122,365.15 × 48,385.92
  4. Step 4: Simplify right side
    88,672.15x = 5,920,750,358.69
  5. Step 5: Solve for x
    x = 5,920,750,358.69/88,672.15
  6. Step 6: Final answer
    x = 66,771.25

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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.