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Finding the Fourth Proportional to 123,510.96, 170,447.09 and 69,069.24

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Solution

The fourth proportional to 123,510.96, 170,447.09 and 69,069.24 is: 95,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,510.96 : 170,447.09 = 69,069.24 : x
  2. Step 2: Convert to fraction form
    123,510.96/170,447.09 = 69,069.24/x
  3. Step 3: Cross multiply
    123,510.96x = 170,447.09 × 69,069.24
  4. Step 4: Simplify right side
    123,510.96x = 11,772,650,621.17
  5. Step 5: Solve for x
    x = 11,772,650,621.17/123,510.96
  6. Step 6: Final answer
    x = 95,316.65

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1.5x scale

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.