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Finding the Fourth Proportional to 163,158.75, 244,738.13 and 57,981.87

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Solution

The fourth proportional to 163,158.75, 244,738.13 and 57,981.87 is: 86,972.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,158.75 : 244,738.13 = 57,981.87 : x
  2. Step 2: Convert to fraction form
    163,158.75/244,738.13 = 57,981.87/x
  3. Step 3: Cross multiply
    163,158.75x = 244,738.13 × 57,981.87
  4. Step 4: Simplify right side
    163,158.75x = 14,190,374,147.79
  5. Step 5: Solve for x
    x = 14,190,374,147.79/163,158.75
  6. Step 6: Final answer
    x = 86,972.81

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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.