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Finding the Fourth Proportional to 96,115.80, 144,173.68 and 69,986.82

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Solution

The fourth proportional to 96,115.80, 144,173.68 and 69,986.82 is: 104,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,115.80 : 144,173.68 = 69,986.82 : x
  2. Step 2: Convert to fraction form
    96,115.80/144,173.68 = 69,986.82/x
  3. Step 3: Cross multiply
    96,115.80x = 144,173.68 × 69,986.82
  4. Step 4: Simplify right side
    96,115.80x = 10,090,257,390.90
  5. Step 5: Solve for x
    x = 10,090,257,390.90/96,115.80
  6. Step 6: Final answer
    x = 104,980.22

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1.5x scale

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.