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Finding the Fourth Proportional to 147,750.39, 203,905.46 and 82,349.39

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Solution

The fourth proportional to 147,750.39, 203,905.46 and 82,349.39 is: 113,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,750.39 : 203,905.46 = 82,349.39 : x
  2. Step 2: Convert to fraction form
    147,750.39/203,905.46 = 82,349.39/x
  3. Step 3: Cross multiply
    147,750.39x = 203,905.46 × 82,349.39
  4. Step 4: Simplify right side
    147,750.39x = 16,791,490,451.47
  5. Step 5: Solve for x
    x = 16,791,490,451.47/147,750.39
  6. Step 6: Final answer
    x = 113,647.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.