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Finding the Fourth Proportional to 123,650.93, 170,638.28 and 69,934.79

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Solution

The fourth proportional to 123,650.93, 170,638.28 and 69,934.79 is: 96,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,650.93 : 170,638.28 = 69,934.79 : x
  2. Step 2: Convert to fraction form
    123,650.93/170,638.28 = 69,934.79/x
  3. Step 3: Cross multiply
    123,650.93x = 170,638.28 × 69,934.79
  4. Step 4: Simplify right side
    123,650.93x = 11,933,552,911.98
  5. Step 5: Solve for x
    x = 11,933,552,911.98/123,650.93
  6. Step 6: Final answer
    x = 96,510.01

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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.