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Finding the Fourth Proportional to 70,889.48, 97,841.70 and 40,695.26

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Solution

The fourth proportional to 70,889.48, 97,841.70 and 40,695.26 is: 56,167.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,889.48 : 97,841.70 = 40,695.26 : x
  2. Step 2: Convert to fraction form
    70,889.48/97,841.70 = 40,695.26/x
  3. Step 3: Cross multiply
    70,889.48x = 97,841.70 × 40,695.26
  4. Step 4: Simplify right side
    70,889.48x = 3,981,693,420.34
  5. Step 5: Solve for x
    x = 3,981,693,420.34/70,889.48
  6. Step 6: Final answer
    x = 56,167.62

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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.