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Finding the Fourth Proportional to 209,388.81, 313,956.37 and 93,962.13

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Solution

The fourth proportional to 209,388.81, 313,956.37 and 93,962.13 is: 140,886.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,388.81 : 313,956.37 = 93,962.13 : x
  2. Step 2: Convert to fraction form
    209,388.81/313,956.37 = 93,962.13/x
  3. Step 3: Cross multiply
    209,388.81x = 313,956.37 × 93,962.13
  4. Step 4: Simplify right side
    209,388.81x = 29,500,010,037.16
  5. Step 5: Solve for x
    x = 29,500,010,037.16/209,388.81
  6. Step 6: Final answer
    x = 140,886.28

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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.