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Finding the Fourth Proportional to 358,965.88, 538,698.66 and 148,604.92

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Solution

The fourth proportional to 358,965.88, 538,698.66 and 148,604.92 is: 223,010.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,965.88 : 538,698.66 = 148,604.92 : x
  2. Step 2: Convert to fraction form
    358,965.88/538,698.66 = 148,604.92/x
  3. Step 3: Cross multiply
    358,965.88x = 538,698.66 × 148,604.92
  4. Step 4: Simplify right side
    358,965.88x = 80,053,271,273.41
  5. Step 5: Solve for x
    x = 80,053,271,273.41/358,965.88
  6. Step 6: Final answer
    x = 223,010.81

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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.