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Finding the Fourth Proportional to 246,233.78, 339,807.84 and 138,803.78

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Solution

The fourth proportional to 246,233.78, 339,807.84 and 138,803.78 is: 191,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,233.78 : 339,807.84 = 138,803.78 : x
  2. Step 2: Convert to fraction form
    246,233.78/339,807.84 = 138,803.78/x
  3. Step 3: Cross multiply
    246,233.78x = 339,807.84 × 138,803.78
  4. Step 4: Simplify right side
    246,233.78x = 47,166,613,515.15
  5. Step 5: Solve for x
    x = 47,166,613,515.15/246,233.78
  6. Step 6: Final answer
    x = 191,552.17

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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.