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Finding the Fourth Proportional to 113,479.71, 170,324.69 and 57,359.49

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Solution

The fourth proportional to 113,479.71, 170,324.69 and 57,359.49 is: 86,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,479.71 : 170,324.69 = 57,359.49 : x
  2. Step 2: Convert to fraction form
    113,479.71/170,324.69 = 57,359.49/x
  3. Step 3: Cross multiply
    113,479.71x = 170,324.69 × 57,359.49
  4. Step 4: Simplify right side
    113,479.71x = 9,769,737,066.01
  5. Step 5: Solve for x
    x = 9,769,737,066.01/113,479.71
  6. Step 6: Final answer
    x = 86,092.37

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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.