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Finding the Fourth Proportional to 71,054.30, 98,054.96 and 39,223.22

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Solution

The fourth proportional to 71,054.30, 98,054.96 and 39,223.22 is: 54,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,054.30 : 98,054.96 = 39,223.22 : x
  2. Step 2: Convert to fraction form
    71,054.30/98,054.96 = 39,223.22/x
  3. Step 3: Cross multiply
    71,054.30x = 98,054.96 × 39,223.22
  4. Step 4: Simplify right side
    71,054.30x = 3,846,030,581.78
  5. Step 5: Solve for x
    x = 3,846,030,581.78/71,054.30
  6. Step 6: Final answer
    x = 54,128.05

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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.