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Finding the Fourth Proportional to 358,864.44, 538,278.72 and 134,208.33

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Solution

The fourth proportional to 358,864.44, 538,278.72 and 134,208.33 is: 201,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,864.44 : 538,278.72 = 134,208.33 : x
  2. Step 2: Convert to fraction form
    358,864.44/538,278.72 = 134,208.33/x
  3. Step 3: Cross multiply
    358,864.44x = 538,278.72 × 134,208.33
  4. Step 4: Simplify right side
    358,864.44x = 72,241,488,085.74
  5. Step 5: Solve for x
    x = 72,241,488,085.74/358,864.44
  6. Step 6: Final answer
    x = 201,305.79

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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.