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Finding the Fourth Proportional to 248,549.71, 343,002.59 and 135,372.46

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Solution

The fourth proportional to 248,549.71, 343,002.59 and 135,372.46 is: 186,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,549.71 : 343,002.59 = 135,372.46 : x
  2. Step 2: Convert to fraction form
    248,549.71/343,002.59 = 135,372.46/x
  3. Step 3: Cross multiply
    248,549.71x = 343,002.59 × 135,372.46
  4. Step 4: Simplify right side
    248,549.71x = 46,433,104,394.67
  5. Step 5: Solve for x
    x = 46,433,104,394.67/248,549.71
  6. Step 6: Final answer
    x = 186,816.17

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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.