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Finding the Fourth Proportional to 230,891.52, 318,677.76 and 135,448.32

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Solution

The fourth proportional to 230,891.52, 318,677.76 and 135,448.32 is: 186,946.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,891.52 : 318,677.76 = 135,448.32 : x
  2. Step 2: Convert to fraction form
    230,891.52/318,677.76 = 135,448.32/x
  3. Step 3: Cross multiply
    230,891.52x = 318,677.76 × 135,448.32
  4. Step 4: Simplify right side
    230,891.52x = 43,164,367,213.36
  5. Step 5: Solve for x
    x = 43,164,367,213.36/230,891.52
  6. Step 6: Final answer
    x = 186,946.52

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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.