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Finding the Fourth Proportional to 96,688.90, 144,918.15 and 40,528.90

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Solution

The fourth proportional to 96,688.90, 144,918.15 and 40,528.90 is: 60,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,688.90 : 144,918.15 = 40,528.90 : x
  2. Step 2: Convert to fraction form
    96,688.90/144,918.15 = 40,528.90/x
  3. Step 3: Cross multiply
    96,688.90x = 144,918.15 × 40,528.90
  4. Step 4: Simplify right side
    96,688.90x = 5,873,373,209.54
  5. Step 5: Solve for x
    x = 5,873,373,209.54/96,688.90
  6. Step 6: Final answer
    x = 60,745.06

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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.