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Finding the Fourth Proportional to 283,352.25, 391,026.11 and 156,027.54

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Solution

The fourth proportional to 283,352.25, 391,026.11 and 156,027.54 is: 215,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,352.25 : 391,026.11 = 156,027.54 : x
  2. Step 2: Convert to fraction form
    283,352.25/391,026.11 = 156,027.54/x
  3. Step 3: Cross multiply
    283,352.25x = 391,026.11 × 156,027.54
  4. Step 4: Simplify right side
    283,352.25x = 61,010,841,238.93
  5. Step 5: Solve for x
    x = 61,010,841,238.93/283,352.25
  6. Step 6: Final answer
    x = 215,318.01

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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.