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Finding the Fourth Proportional to 131,841.78, 197,774.34 and 37,072.78

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Solution

The fourth proportional to 131,841.78, 197,774.34 and 37,072.78 is: 55,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,841.78 : 197,774.34 = 37,072.78 : x
  2. Step 2: Convert to fraction form
    131,841.78/197,774.34 = 37,072.78/x
  3. Step 3: Cross multiply
    131,841.78x = 197,774.34 × 37,072.78
  4. Step 4: Simplify right side
    131,841.78x = 7,332,044,596.47
  5. Step 5: Solve for x
    x = 7,332,044,596.47/131,841.78
  6. Step 6: Final answer
    x = 55,612.45

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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.