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Finding the Fourth Proportional to 123,462.42, 170,391.94 and 69,750.88

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Solution

The fourth proportional to 123,462.42, 170,391.94 and 69,750.88 is: 96,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,462.42 : 170,391.94 = 69,750.88 : x
  2. Step 2: Convert to fraction form
    123,462.42/170,391.94 = 69,750.88/x
  3. Step 3: Cross multiply
    123,462.42x = 170,391.94 × 69,750.88
  4. Step 4: Simplify right side
    123,462.42x = 11,884,987,759.91
  5. Step 5: Solve for x
    x = 11,884,987,759.91/123,462.42
  6. Step 6: Final answer
    x = 96,264.01

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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.