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Finding the Fourth Proportional to 101,606.51, 140,285.45 and 63,424.19

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Solution

The fourth proportional to 101,606.51, 140,285.45 and 63,424.19 is: 87,568.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,606.51 : 140,285.45 = 63,424.19 : x
  2. Step 2: Convert to fraction form
    101,606.51/140,285.45 = 63,424.19/x
  3. Step 3: Cross multiply
    101,606.51x = 140,285.45 × 63,424.19
  4. Step 4: Simplify right side
    101,606.51x = 8,897,491,035.04
  5. Step 5: Solve for x
    x = 8,897,491,035.04/101,606.51
  6. Step 6: Final answer
    x = 87,568.12

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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.