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Finding the Fourth Proportional to 235,589.88, 353,309.46 and 77,788.92

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Solution

The fourth proportional to 235,589.88, 353,309.46 and 77,788.92 is: 116,658.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,589.88 : 353,309.46 = 77,788.92 : x
  2. Step 2: Convert to fraction form
    235,589.88/353,309.46 = 77,788.92/x
  3. Step 3: Cross multiply
    235,589.88x = 353,309.46 × 77,788.92
  4. Step 4: Simplify right side
    235,589.88x = 27,483,561,319.18
  5. Step 5: Solve for x
    x = 27,483,561,319.18/235,589.88
  6. Step 6: Final answer
    x = 116,658.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.