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Finding the Fourth Proportional to 131,840.78, 197,772.84 and 37,071.78

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Solution

The fourth proportional to 131,840.78, 197,772.84 and 37,071.78 is: 55,610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840.78 : 197,772.84 = 37,071.78 : x
  2. Step 2: Convert to fraction form
    131,840.78/197,772.84 = 37,071.78/x
  3. Step 3: Cross multiply
    131,840.78x = 197,772.84 × 37,071.78
  4. Step 4: Simplify right side
    131,840.78x = 7,331,791,214.46
  5. Step 5: Solve for x
    x = 7,331,791,214.46/131,840.78
  6. Step 6: Final answer
    x = 55,610.95

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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.