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Finding the Fourth Proportional to 247,599.76, 371,304.86 and 105,356.06

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Solution

The fourth proportional to 247,599.76, 371,304.86 and 105,356.06 is: 157,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,599.76 : 371,304.86 = 105,356.06 : x
  2. Step 2: Convert to fraction form
    247,599.76/371,304.86 = 105,356.06/x
  3. Step 3: Cross multiply
    247,599.76x = 371,304.86 × 105,356.06
  4. Step 4: Simplify right side
    247,599.76x = 39,119,217,108.45
  5. Step 5: Solve for x
    x = 39,119,217,108.45/247,599.76
  6. Step 6: Final answer
    x = 157,993.76

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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.