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Finding the Fourth Proportional to 76,118.76, 105,079.14 and 44,276.04

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Solution

The fourth proportional to 76,118.76, 105,079.14 and 44,276.04 is: 61,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,118.76 : 105,079.14 = 44,276.04 : x
  2. Step 2: Convert to fraction form
    76,118.76/105,079.14 = 44,276.04/x
  3. Step 3: Cross multiply
    76,118.76x = 105,079.14 × 44,276.04
  4. Step 4: Simplify right side
    76,118.76x = 4,652,488,205.81
  5. Step 5: Solve for x
    x = 4,652,488,205.81/76,118.76
  6. Step 6: Final answer
    x = 61,121.44

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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.