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Finding the Fourth Proportional to 77,462.88, 106,898.77 and 43,928.88

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Solution

The fourth proportional to 77,462.88, 106,898.77 and 43,928.88 is: 60,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,462.88 : 106,898.77 = 43,928.88 : x
  2. Step 2: Convert to fraction form
    77,462.88/106,898.77 = 43,928.88/x
  3. Step 3: Cross multiply
    77,462.88x = 106,898.77 × 43,928.88
  4. Step 4: Simplify right side
    77,462.88x = 4,695,943,239.48
  5. Step 5: Solve for x
    x = 4,695,943,239.48/77,462.88
  6. Step 6: Final answer
    x = 60,621.85

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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.