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Finding the Fourth Proportional to 95,398.96, 143,139.12 and 47,989.12

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Solution

The fourth proportional to 95,398.96, 143,139.12 and 47,989.12 is: 72,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,398.96 : 143,139.12 = 47,989.12 : x
  2. Step 2: Convert to fraction form
    95,398.96/143,139.12 = 47,989.12/x
  3. Step 3: Cross multiply
    95,398.96x = 143,139.12 × 47,989.12
  4. Step 4: Simplify right side
    95,398.96x = 6,869,120,406.37
  5. Step 5: Solve for x
    x = 6,869,120,406.37/95,398.96
  6. Step 6: Final answer
    x = 72,004.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.