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Finding the Fourth Proportional to 159,025.85, 219,468.20 and 91,064.22

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Solution

The fourth proportional to 159,025.85, 219,468.20 and 91,064.22 is: 125,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,025.85 : 219,468.20 = 91,064.22 : x
  2. Step 2: Convert to fraction form
    159,025.85/219,468.20 = 91,064.22/x
  3. Step 3: Cross multiply
    159,025.85x = 219,468.20 × 91,064.22
  4. Step 4: Simplify right side
    159,025.85x = 19,985,699,992.48
  5. Step 5: Solve for x
    x = 19,985,699,992.48/159,025.85
  6. Step 6: Final answer
    x = 125,675.80

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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.