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Finding the Fourth Proportional to 101,484.26, 140,046.06 and 55,543.68

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Solution

The fourth proportional to 101,484.26, 140,046.06 and 55,543.68 is: 76,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,484.26 : 140,046.06 = 55,543.68 : x
  2. Step 2: Convert to fraction form
    101,484.26/140,046.06 = 55,543.68/x
  3. Step 3: Cross multiply
    101,484.26x = 140,046.06 × 55,543.68
  4. Step 4: Simplify right side
    101,484.26x = 7,778,672,841.67
  5. Step 5: Solve for x
    x = 7,778,672,841.67/101,484.26
  6. Step 6: Final answer
    x = 76,649.06

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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.