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Finding the Fourth Proportional to 77,612.43, 107,106.80 and 44,077.71

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Solution

The fourth proportional to 77,612.43, 107,106.80 and 44,077.71 is: 60,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,612.43 : 107,106.80 = 44,077.71 : x
  2. Step 2: Convert to fraction form
    77,612.43/107,106.80 = 44,077.71/x
  3. Step 3: Cross multiply
    77,612.43x = 107,106.80 × 44,077.71
  4. Step 4: Simplify right side
    77,612.43x = 4,721,022,249.04
  5. Step 5: Solve for x
    x = 4,721,022,249.04/77,612.43
  6. Step 6: Final answer
    x = 60,828.17

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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.