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Finding the Fourth Proportional to 101,575.26, 140,243.13 and 63,349.74

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Solution

The fourth proportional to 101,575.26, 140,243.13 and 63,349.74 is: 87,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,575.26 : 140,243.13 = 63,349.74 : x
  2. Step 2: Convert to fraction form
    101,575.26/140,243.13 = 63,349.74/x
  3. Step 3: Cross multiply
    101,575.26x = 140,243.13 × 63,349.74
  4. Step 4: Simplify right side
    101,575.26x = 8,884,365,822.29
  5. Step 5: Solve for x
    x = 8,884,365,822.29/101,575.26
  6. Step 6: Final answer
    x = 87,465.84

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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.