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Finding the Fourth Proportional to 71,223.87, 98,284.98 and 38,952.06

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Solution

The fourth proportional to 71,223.87, 98,284.98 and 38,952.06 is: 53,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.87 : 98,284.98 = 38,952.06 : x
  2. Step 2: Convert to fraction form
    71,223.87/98,284.98 = 38,952.06/x
  3. Step 3: Cross multiply
    71,223.87x = 98,284.98 × 38,952.06
  4. Step 4: Simplify right side
    71,223.87x = 3,828,402,743.57
  5. Step 5: Solve for x
    x = 3,828,402,743.57/71,223.87
  6. Step 6: Final answer
    x = 53,751.68

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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.