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Finding the Fourth Proportional to 88,353.89, 121,929.65 and 48,067.68

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Solution

The fourth proportional to 88,353.89, 121,929.65 and 48,067.68 is: 66,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,353.89 : 121,929.65 = 48,067.68 : x
  2. Step 2: Convert to fraction form
    88,353.89/121,929.65 = 48,067.68/x
  3. Step 3: Cross multiply
    88,353.89x = 121,929.65 × 48,067.68
  4. Step 4: Simplify right side
    88,353.89x = 5,860,875,380.39
  5. Step 5: Solve for x
    x = 5,860,875,380.39/88,353.89
  6. Step 6: Final answer
    x = 66,334.10

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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.