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Finding the Fourth Proportional to 117,689.96, 176,571.83 and 38,859.55

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Solution

The fourth proportional to 117,689.96, 176,571.83 and 38,859.55 is: 58,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,689.96 : 176,571.83 = 38,859.55 : x
  2. Step 2: Convert to fraction form
    117,689.96/176,571.83 = 38,859.55/x
  3. Step 3: Cross multiply
    117,689.96x = 176,571.83 × 38,859.55
  4. Step 4: Simplify right side
    117,689.96x = 6,861,501,512.20
  5. Step 5: Solve for x
    x = 6,861,501,512.20/117,689.96
  6. Step 6: Final answer
    x = 58,301.50

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1.5x scale

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.