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Finding the Fourth Proportional to 244,919.16, 367,378.74 and 78,720.12

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Solution

The fourth proportional to 244,919.16, 367,378.74 and 78,720.12 is: 118,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,919.16 : 367,378.74 = 78,720.12 : x
  2. Step 2: Convert to fraction form
    244,919.16/367,378.74 = 78,720.12/x
  3. Step 3: Cross multiply
    244,919.16x = 367,378.74 × 78,720.12
  4. Step 4: Simplify right side
    244,919.16x = 28,920,098,498.25
  5. Step 5: Solve for x
    x = 28,920,098,498.25/244,919.16
  6. Step 6: Final answer
    x = 118,080.18

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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.