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Finding the Fourth Proportional to 76,115.76, 105,075 and 44,273.04

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Solution

The fourth proportional to 76,115.76, 105,075 and 44,273.04 is: 61,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,115.76 : 105,075 = 44,273.04 : x
  2. Step 2: Convert to fraction form
    76,115.76/105,075 = 44,273.04/x
  3. Step 3: Cross multiply
    76,115.76x = 105,075 × 44,273.04
  4. Step 4: Simplify right side
    76,115.76x = 4,651,989,678
  5. Step 5: Solve for x
    x = 4,651,989,678/76,115.76
  6. Step 6: Final answer
    x = 61,117.30

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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.