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Finding the Fourth Proportional to 358,898.40, 538,304.40 and 148,514.40

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Solution

The fourth proportional to 358,898.40, 538,304.40 and 148,514.40 is: 222,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,898.40 : 538,304.40 = 148,514.40 : x
  2. Step 2: Convert to fraction form
    358,898.40/538,304.40 = 148,514.40/x
  3. Step 3: Cross multiply
    358,898.40x = 538,304.40 × 148,514.40
  4. Step 4: Simplify right side
    358,898.40x = 79,945,954,983.36
  5. Step 5: Solve for x
    x = 79,945,954,983.36/358,898.40
  6. Step 6: Final answer
    x = 222,753.72

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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.