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Finding the Fourth Proportional to 94,707.60, 142,176.60 and 71,149.20

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Solution

The fourth proportional to 94,707.60, 142,176.60 and 71,149.20 is: 106,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,707.60 : 142,176.60 = 71,149.20 : x
  2. Step 2: Convert to fraction form
    94,707.60/142,176.60 = 71,149.20/x
  3. Step 3: Cross multiply
    94,707.60x = 142,176.60 × 71,149.20
  4. Step 4: Simplify right side
    94,707.60x = 10,115,751,348.72
  5. Step 5: Solve for x
    x = 10,115,751,348.72/94,707.60
  6. Step 6: Final answer
    x = 106,810.34

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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.