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Finding the Fourth Proportional to 88,672.32, 122,364 and 48,385.08

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Solution

The fourth proportional to 88,672.32, 122,364 and 48,385.08 is: 66,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,672.32 : 122,364 = 48,385.08 : x
  2. Step 2: Convert to fraction form
    88,672.32/122,364 = 48,385.08/x
  3. Step 3: Cross multiply
    88,672.32x = 122,364 × 48,385.08
  4. Step 4: Simplify right side
    88,672.32x = 5,920,591,929.12
  5. Step 5: Solve for x
    x = 5,920,591,929.12/88,672.32
  6. Step 6: Final answer
    x = 66,769.34

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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.