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Finding the Fourth Proportional to 88,321, 121,884.90 and 48,577

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Solution

The fourth proportional to 88,321, 121,884.90 and 48,577 is: 67,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,321 : 121,884.90 = 48,577 : x
  2. Step 2: Convert to fraction form
    88,321/121,884.90 = 48,577/x
  3. Step 3: Cross multiply
    88,321x = 121,884.90 × 48,577
  4. Step 4: Simplify right side
    88,321x = 5,920,802,787.30
  5. Step 5: Solve for x
    x = 5,920,802,787.30/88,321
  6. Step 6: Final answer
    x = 67,037.32

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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.