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Finding the Fourth Proportional to 309,836.39, 464,744.86 and 170,471.03

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Solution

The fourth proportional to 309,836.39, 464,744.86 and 170,471.03 is: 255,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,836.39 : 464,744.86 = 170,471.03 : x
  2. Step 2: Convert to fraction form
    309,836.39/464,744.86 = 170,471.03/x
  3. Step 3: Cross multiply
    309,836.39x = 464,744.86 × 170,471.03
  4. Step 4: Simplify right side
    309,836.39x = 79,225,534,971.41
  5. Step 5: Solve for x
    x = 79,225,534,971.41/309,836.39
  6. Step 6: Final answer
    x = 255,701.19

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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.