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Finding the Fourth Proportional to 244,661.40, 366,992.10 and 78,466.20

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Solution

The fourth proportional to 244,661.40, 366,992.10 and 78,466.20 is: 117,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,661.40 : 366,992.10 = 78,466.20 : x
  2. Step 2: Convert to fraction form
    244,661.40/366,992.10 = 78,466.20/x
  3. Step 3: Cross multiply
    244,661.40x = 366,992.10 × 78,466.20
  4. Step 4: Simplify right side
    244,661.40x = 28,796,475,517.02
  5. Step 5: Solve for x
    x = 28,796,475,517.02/244,661.40
  6. Step 6: Final answer
    x = 117,699.30

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1.5x scale

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.