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Finding the Fourth Proportional to 247,788.95, 371,707.92 and 79,266.96

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Solution

The fourth proportional to 247,788.95, 371,707.92 and 79,266.96 is: 118,908.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,788.95 : 371,707.92 = 79,266.96 : x
  2. Step 2: Convert to fraction form
    247,788.95/371,707.92 = 79,266.96/x
  3. Step 3: Cross multiply
    247,788.95x = 371,707.92 × 79,266.96
  4. Step 4: Simplify right side
    247,788.95x = 29,464,156,826.32
  5. Step 5: Solve for x
    x = 29,464,156,826.32/247,788.95
  6. Step 6: Final answer
    x = 118,908.28

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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.