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Finding the Fourth Proportional to 174,478.30, 261,717.45 and 156,982.30

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Solution

The fourth proportional to 174,478.30, 261,717.45 and 156,982.30 is: 235,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,478.30 : 261,717.45 = 156,982.30 : x
  2. Step 2: Convert to fraction form
    174,478.30/261,717.45 = 156,982.30/x
  3. Step 3: Cross multiply
    174,478.30x = 261,717.45 × 156,982.30
  4. Step 4: Simplify right side
    174,478.30x = 41,085,007,251.14
  5. Step 5: Solve for x
    x = 41,085,007,251.14/174,478.30
  6. Step 6: Final answer
    x = 235,473.45

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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.