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Finding the Fourth Proportional to 244,842.80, 367,264.20 and 78,647.60

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Solution

The fourth proportional to 244,842.80, 367,264.20 and 78,647.60 is: 117,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,842.80 : 367,264.20 = 78,647.60 : x
  2. Step 2: Convert to fraction form
    244,842.80/367,264.20 = 78,647.60/x
  3. Step 3: Cross multiply
    244,842.80x = 367,264.20 × 78,647.60
  4. Step 4: Simplify right side
    244,842.80x = 28,884,447,895.92
  5. Step 5: Solve for x
    x = 28,884,447,895.92/244,842.80
  6. Step 6: Final answer
    x = 117,971.40

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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.