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Finding the Fourth Proportional to 117,718.50, 175,468.80 and 108,270.66

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Solution

The fourth proportional to 117,718.50, 175,468.80 and 108,270.66 is: 161,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,718.50 : 175,468.80 = 108,270.66 : x
  2. Step 2: Convert to fraction form
    117,718.50/175,468.80 = 108,270.66/x
  3. Step 3: Cross multiply
    117,718.50x = 175,468.80 × 108,270.66
  4. Step 4: Simplify right side
    117,718.50x = 18,998,122,785.41
  5. Step 5: Solve for x
    x = 18,998,122,785.41/117,718.50
  6. Step 6: Final answer
    x = 161,386.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.