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Finding the Fourth Proportional to 70,394.57, 97,129.38 and 41,723.20

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Solution

The fourth proportional to 70,394.57, 97,129.38 and 41,723.20 is: 57,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,394.57 : 97,129.38 = 41,723.20 : x
  2. Step 2: Convert to fraction form
    70,394.57/97,129.38 = 41,723.20/x
  3. Step 3: Cross multiply
    70,394.57x = 97,129.38 × 41,723.20
  4. Step 4: Simplify right side
    70,394.57x = 4,052,547,853.35
  5. Step 5: Solve for x
    x = 4,052,547,853.35/70,394.57
  6. Step 6: Final answer
    x = 57,569.04

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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.