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Finding the Fourth Proportional to 236,716.50, 326,678.49 and 136,114.50

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Solution

The fourth proportional to 236,716.50, 326,678.49 and 136,114.50 is: 187,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,716.50 : 326,678.49 = 136,114.50 : x
  2. Step 2: Convert to fraction form
    236,716.50/326,678.49 = 136,114.50/x
  3. Step 3: Cross multiply
    236,716.50x = 326,678.49 × 136,114.50
  4. Step 4: Simplify right side
    236,716.50x = 44,465,679,327.11
  5. Step 5: Solve for x
    x = 44,465,679,327.11/236,716.50
  6. Step 6: Final answer
    x = 187,843.60

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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.