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Finding the Fourth Proportional to 355,514.70, 533,077.65 and 144,914.70

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Solution

The fourth proportional to 355,514.70, 533,077.65 and 144,914.70 is: 217,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,514.70 : 533,077.65 = 144,914.70 : x
  2. Step 2: Convert to fraction form
    355,514.70/533,077.65 = 144,914.70/x
  3. Step 3: Cross multiply
    355,514.70x = 533,077.65 × 144,914.70
  4. Step 4: Simplify right side
    355,514.70x = 77,250,787,726.46
  5. Step 5: Solve for x
    x = 77,250,787,726.46/355,514.70
  6. Step 6: Final answer
    x = 217,292.81

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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.