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Finding the Fourth Proportional to 123,590.88, 170,542.80 and 75,846.24

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Solution

The fourth proportional to 123,590.88, 170,542.80 and 75,846.24 is: 104,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.88 : 170,542.80 = 75,846.24 : x
  2. Step 2: Convert to fraction form
    123,590.88/170,542.80 = 75,846.24/x
  3. Step 3: Cross multiply
    123,590.88x = 170,542.80 × 75,846.24
  4. Step 4: Simplify right side
    123,590.88x = 12,935,030,139.07
  5. Step 5: Solve for x
    x = 12,935,030,139.07/123,590.88
  6. Step 6: Final answer
    x = 104,660.07

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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.