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Finding the Fourth Proportional to 230,343.31, 317,884.59 and 134,880.76

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Solution

The fourth proportional to 230,343.31, 317,884.59 and 134,880.76 is: 186,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,343.31 : 317,884.59 = 134,880.76 : x
  2. Step 2: Convert to fraction form
    230,343.31/317,884.59 = 134,880.76/x
  3. Step 3: Cross multiply
    230,343.31x = 317,884.59 × 134,880.76
  4. Step 4: Simplify right side
    230,343.31x = 42,876,515,091.49
  5. Step 5: Solve for x
    x = 42,876,515,091.49/230,343.31
  6. Step 6: Final answer
    x = 186,141.79

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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.