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Finding the Fourth Proportional to 63,223.71, 87,240.84 and 39,358.08

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Solution

The fourth proportional to 63,223.71, 87,240.84 and 39,358.08 is: 54,309.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,223.71 : 87,240.84 = 39,358.08 : x
  2. Step 2: Convert to fraction form
    63,223.71/87,240.84 = 39,358.08/x
  3. Step 3: Cross multiply
    63,223.71x = 87,240.84 × 39,358.08
  4. Step 4: Simplify right side
    63,223.71x = 3,433,631,959.99
  5. Step 5: Solve for x
    x = 3,433,631,959.99/63,223.71
  6. Step 6: Final answer
    x = 54,309.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.