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Finding the Fourth Proportional to 88,572, 122,229.36 and 48,828

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Solution

The fourth proportional to 88,572, 122,229.36 and 48,828 is: 67,382.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,572 : 122,229.36 = 48,828 : x
  2. Step 2: Convert to fraction form
    88,572/122,229.36 = 48,828/x
  3. Step 3: Cross multiply
    88,572x = 122,229.36 × 48,828
  4. Step 4: Simplify right side
    88,572x = 5,968,215,190.08
  5. Step 5: Solve for x
    x = 5,968,215,190.08/88,572
  6. Step 6: Final answer
    x = 67,382.64

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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.