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Finding the Fourth Proportional to 83,678.69, 125,479.76 and 49,960.01

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Solution

The fourth proportional to 83,678.69, 125,479.76 and 49,960.01 is: 74,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,678.69 : 125,479.76 = 49,960.01 : x
  2. Step 2: Convert to fraction form
    83,678.69/125,479.76 = 49,960.01/x
  3. Step 3: Cross multiply
    83,678.69x = 125,479.76 × 49,960.01
  4. Step 4: Simplify right side
    83,678.69x = 6,268,969,187.20
  5. Step 5: Solve for x
    x = 6,268,969,187.20/83,678.69
  6. Step 6: Final answer
    x = 74,917.16

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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.