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Finding the Fourth Proportional to 124,248.96, 186,408 and 68,883.84

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Solution

The fourth proportional to 124,248.96, 186,408 and 68,883.84 is: 103,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,248.96 : 186,408 = 68,883.84 : x
  2. Step 2: Convert to fraction form
    124,248.96/186,408 = 68,883.84/x
  3. Step 3: Cross multiply
    124,248.96x = 186,408 × 68,883.84
  4. Step 4: Simplify right side
    124,248.96x = 12,840,498,846.72
  5. Step 5: Solve for x
    x = 12,840,498,846.72/124,248.96
  6. Step 6: Final answer
    x = 103,344.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.