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Finding the Fourth Proportional to 71,149.92, 98,207.40 and 46,968.58

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Solution

The fourth proportional to 71,149.92, 98,207.40 and 46,968.58 is: 64,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,149.92 : 98,207.40 = 46,968.58 : x
  2. Step 2: Convert to fraction form
    71,149.92/98,207.40 = 46,968.58/x
  3. Step 3: Cross multiply
    71,149.92x = 98,207.40 × 46,968.58
  4. Step 4: Simplify right side
    71,149.92x = 4,612,662,123.49
  5. Step 5: Solve for x
    x = 4,612,662,123.49/71,149.92
  6. Step 6: Final answer
    x = 64,830.18

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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.