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Finding the Fourth Proportional to 235,013.40, 352,001.70 and 141,355.80

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Solution

The fourth proportional to 235,013.40, 352,001.70 and 141,355.80 is: 211,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,013.40 : 352,001.70 = 141,355.80 : x
  2. Step 2: Convert to fraction form
    235,013.40/352,001.70 = 141,355.80/x
  3. Step 3: Cross multiply
    235,013.40x = 352,001.70 × 141,355.80
  4. Step 4: Simplify right side
    235,013.40x = 49,757,481,904.86
  5. Step 5: Solve for x
    x = 49,757,481,904.86/235,013.40
  6. Step 6: Final answer
    x = 211,721.89

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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.