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Finding the Fourth Proportional to 163,711.53, 244,635.39 and 122,919.12

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Solution

The fourth proportional to 163,711.53, 244,635.39 and 122,919.12 is: 183,678.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,711.53 : 244,635.39 = 122,919.12 : x
  2. Step 2: Convert to fraction form
    163,711.53/244,635.39 = 122,919.12/x
  3. Step 3: Cross multiply
    163,711.53x = 244,635.39 × 122,919.12
  4. Step 4: Simplify right side
    163,711.53x = 30,070,366,859.66
  5. Step 5: Solve for x
    x = 30,070,366,859.66/163,711.53
  6. Step 6: Final answer
    x = 183,678.98

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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.