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Finding the Fourth Proportional to 243,798.39, 336,477.69 and 148,286.61

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Solution

The fourth proportional to 243,798.39, 336,477.69 and 148,286.61 is: 204,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,798.39 : 336,477.69 = 148,286.61 : x
  2. Step 2: Convert to fraction form
    243,798.39/336,477.69 = 148,286.61/x
  3. Step 3: Cross multiply
    243,798.39x = 336,477.69 × 148,286.61
  4. Step 4: Simplify right side
    243,798.39x = 49,895,135,990.73
  5. Step 5: Solve for x
    x = 49,895,135,990.73/243,798.39
  6. Step 6: Final answer
    x = 204,657.36

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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.