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Finding the Fourth Proportional to 123,348.55, 170,225.13 and 75,592.68

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Solution

The fourth proportional to 123,348.55, 170,225.13 and 75,592.68 is: 104,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.55 : 170,225.13 = 75,592.68 : x
  2. Step 2: Convert to fraction form
    123,348.55/170,225.13 = 75,592.68/x
  3. Step 3: Cross multiply
    123,348.55x = 170,225.13 × 75,592.68
  4. Step 4: Simplify right side
    123,348.55x = 12,867,773,354.49
  5. Step 5: Solve for x
    x = 12,867,773,354.49/123,348.55
  6. Step 6: Final answer
    x = 104,320.42

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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.