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Finding the Fourth Proportional to 331,482.70, 497,224.05 and 144,858.70

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Solution

The fourth proportional to 331,482.70, 497,224.05 and 144,858.70 is: 217,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,482.70 : 497,224.05 = 144,858.70 : x
  2. Step 2: Convert to fraction form
    331,482.70/497,224.05 = 144,858.70/x
  3. Step 3: Cross multiply
    331,482.70x = 497,224.05 × 144,858.70
  4. Step 4: Simplify right side
    331,482.70x = 72,027,229,491.74
  5. Step 5: Solve for x
    x = 72,027,229,491.74/331,482.70
  6. Step 6: Final answer
    x = 217,288.05

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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.