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Finding the Fourth Proportional to 77,392.62, 106,813.71 and 43,414.83

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Solution

The fourth proportional to 77,392.62, 106,813.71 and 43,414.83 is: 59,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,392.62 : 106,813.71 = 43,414.83 : x
  2. Step 2: Convert to fraction form
    77,392.62/106,813.71 = 43,414.83/x
  3. Step 3: Cross multiply
    77,392.62x = 106,813.71 × 43,414.83
  4. Step 4: Simplify right side
    77,392.62x = 4,637,299,061.32
  5. Step 5: Solve for x
    x = 4,637,299,061.32/77,392.62
  6. Step 6: Final answer
    x = 59,919.14

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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.