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Finding the Fourth Proportional to 120,292.54, 165,998.59 and 66,572.53

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Solution

The fourth proportional to 120,292.54, 165,998.59 and 66,572.53 is: 91,867.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,292.54 : 165,998.59 = 66,572.53 : x
  2. Step 2: Convert to fraction form
    120,292.54/165,998.59 = 66,572.53/x
  3. Step 3: Cross multiply
    120,292.54x = 165,998.59 × 66,572.53
  4. Step 4: Simplify right side
    120,292.54x = 11,050,945,531.30
  5. Step 5: Solve for x
    x = 11,050,945,531.30/120,292.54
  6. Step 6: Final answer
    x = 91,867.26

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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.