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Finding the Fourth Proportional to 239,097.61, 358,185.93 and 133,990.39

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Solution

The fourth proportional to 239,097.61, 358,185.93 and 133,990.39 is: 200,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,097.61 : 358,185.93 = 133,990.39 : x
  2. Step 2: Convert to fraction form
    239,097.61/358,185.93 = 133,990.39/x
  3. Step 3: Cross multiply
    239,097.61x = 358,185.93 × 133,990.39
  4. Step 4: Simplify right side
    239,097.61x = 47,993,472,453.21
  5. Step 5: Solve for x
    x = 47,993,472,453.21/239,097.61
  6. Step 6: Final answer
    x = 200,727.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.