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Finding the Fourth Proportional to 243,399.16, 335,884.28 and 133,013.44

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Solution

The fourth proportional to 243,399.16, 335,884.28 and 133,013.44 is: 183,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,399.16 : 335,884.28 = 133,013.44 : x
  2. Step 2: Convert to fraction form
    243,399.16/335,884.28 = 133,013.44/x
  3. Step 3: Cross multiply
    243,399.16x = 335,884.28 × 133,013.44
  4. Step 4: Simplify right side
    243,399.16x = 44,677,123,524.72
  5. Step 5: Solve for x
    x = 44,677,123,524.72/243,399.16
  6. Step 6: Final answer
    x = 183,554.96

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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.