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Finding the Fourth Proportional to 77,488.12, 106,935.42 and 43,954.12

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Solution

The fourth proportional to 77,488.12, 106,935.42 and 43,954.12 is: 60,657.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,488.12 : 106,935.42 = 43,954.12 : x
  2. Step 2: Convert to fraction form
    77,488.12/106,935.42 = 43,954.12/x
  3. Step 3: Cross multiply
    77,488.12x = 106,935.42 × 43,954.12
  4. Step 4: Simplify right side
    77,488.12x = 4,700,252,282.93
  5. Step 5: Solve for x
    x = 4,700,252,282.93/77,488.12
  6. Step 6: Final answer
    x = 60,657.71

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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.