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Finding the Fourth Proportional to 193,828.70, 290,752.65 and 100,516.70

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Solution

The fourth proportional to 193,828.70, 290,752.65 and 100,516.70 is: 150,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,828.70 : 290,752.65 = 100,516.70 : x
  2. Step 2: Convert to fraction form
    193,828.70/290,752.65 = 100,516.70/x
  3. Step 3: Cross multiply
    193,828.70x = 290,752.65 × 100,516.70
  4. Step 4: Simplify right side
    193,828.70x = 29,225,496,894.26
  5. Step 5: Solve for x
    x = 29,225,496,894.26/193,828.70
  6. Step 6: Final answer
    x = 150,780.03

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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.