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Finding the Fourth Proportional to 76,339.87, 105,343.69 and 44,075.77

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Solution

The fourth proportional to 76,339.87, 105,343.69 and 44,075.77 is: 60,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,339.87 : 105,343.69 = 44,075.77 : x
  2. Step 2: Convert to fraction form
    76,339.87/105,343.69 = 44,075.77/x
  3. Step 3: Cross multiply
    76,339.87x = 105,343.69 × 44,075.77
  4. Step 4: Simplify right side
    76,339.87x = 4,643,104,251.39
  5. Step 5: Solve for x
    x = 4,643,104,251.39/76,339.87
  6. Step 6: Final answer
    x = 60,821.48

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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.