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Finding the Fourth Proportional to 140,349.20, 211,042.20 and 117,539.60

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Solution

The fourth proportional to 140,349.20, 211,042.20 and 117,539.60 is: 176,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,349.20 : 211,042.20 = 117,539.60 : x
  2. Step 2: Convert to fraction form
    140,349.20/211,042.20 = 117,539.60/x
  3. Step 3: Cross multiply
    140,349.20x = 211,042.20 × 117,539.60
  4. Step 4: Simplify right side
    140,349.20x = 24,805,815,771.12
  5. Step 5: Solve for x
    x = 24,805,815,771.12/140,349.20
  6. Step 6: Final answer
    x = 176,743.55

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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.