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Finding the Fourth Proportional to 248,893.48, 343,471.62 and 135,713.80

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Solution

The fourth proportional to 248,893.48, 343,471.62 and 135,713.80 is: 187,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,893.48 : 343,471.62 = 135,713.80 : x
  2. Step 2: Convert to fraction form
    248,893.48/343,471.62 = 135,713.80/x
  3. Step 3: Cross multiply
    248,893.48x = 343,471.62 × 135,713.80
  4. Step 4: Simplify right side
    248,893.48x = 46,613,838,742.36
  5. Step 5: Solve for x
    x = 46,613,838,742.36/248,893.48
  6. Step 6: Final answer
    x = 187,284.29

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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.