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Finding the Fourth Proportional to 243,716.55, 336,333.26 and 136,284.27

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Solution

The fourth proportional to 243,716.55, 336,333.26 and 136,284.27 is: 188,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,716.55 : 336,333.26 = 136,284.27 : x
  2. Step 2: Convert to fraction form
    243,716.55/336,333.26 = 136,284.27/x
  3. Step 3: Cross multiply
    243,716.55x = 336,333.26 × 136,284.27
  4. Step 4: Simplify right side
    243,716.55x = 45,836,933,787.16
  5. Step 5: Solve for x
    x = 45,836,933,787.16/243,716.55
  6. Step 6: Final answer
    x = 188,074.77

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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.