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Finding the Fourth Proportional to 75,620.80, 113,479.80 and 44,030.80

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Solution

The fourth proportional to 75,620.80, 113,479.80 and 44,030.80 is: 66,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,620.80 : 113,479.80 = 44,030.80 : x
  2. Step 2: Convert to fraction form
    75,620.80/113,479.80 = 44,030.80/x
  3. Step 3: Cross multiply
    75,620.80x = 113,479.80 × 44,030.80
  4. Step 4: Simplify right side
    75,620.80x = 4,996,606,377.84
  5. Step 5: Solve for x
    x = 4,996,606,377.84/75,620.80
  6. Step 6: Final answer
    x = 66,074.50

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1.5x scale

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.