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Finding the Fourth Proportional to 235,005.90, 351,990.45 and 141,348.30

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Solution

The fourth proportional to 235,005.90, 351,990.45 and 141,348.30 is: 211,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,005.90 : 351,990.45 = 141,348.30 : x
  2. Step 2: Convert to fraction form
    235,005.90/351,990.45 = 141,348.30/x
  3. Step 3: Cross multiply
    235,005.90x = 351,990.45 × 141,348.30
  4. Step 4: Simplify right side
    235,005.90x = 49,753,251,723.74
  5. Step 5: Solve for x
    x = 49,753,251,723.74/235,005.90
  6. Step 6: Final answer
    x = 211,710.65

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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.