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Finding the Fourth Proportional to 77,418.40, 116,041.20 and 44,154.40

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Solution

The fourth proportional to 77,418.40, 116,041.20 and 44,154.40 is: 66,182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,418.40 : 116,041.20 = 44,154.40 : x
  2. Step 2: Convert to fraction form
    77,418.40/116,041.20 = 44,154.40/x
  3. Step 3: Cross multiply
    77,418.40x = 116,041.20 × 44,154.40
  4. Step 4: Simplify right side
    77,418.40x = 5,123,729,561.28
  5. Step 5: Solve for x
    x = 5,123,729,561.28/77,418.40
  6. Step 6: Final answer
    x = 66,182.32

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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.