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Finding the Fourth Proportional to 71,298.10, 98,393.70 and 41,081.08

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Solution

The fourth proportional to 71,298.10, 98,393.70 and 41,081.08 is: 56,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,298.10 : 98,393.70 = 41,081.08 : x
  2. Step 2: Convert to fraction form
    71,298.10/98,393.70 = 41,081.08/x
  3. Step 3: Cross multiply
    71,298.10x = 98,393.70 × 41,081.08
  4. Step 4: Simplify right side
    71,298.10x = 4,042,119,461.20
  5. Step 5: Solve for x
    x = 4,042,119,461.20/71,298.10
  6. Step 6: Final answer
    x = 56,693.23

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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.