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Finding the Fourth Proportional to 333,554.40, 499,991.40 and 164,815.20

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Solution

The fourth proportional to 333,554.40, 499,991.40 and 164,815.20 is: 247,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,554.40 : 499,991.40 = 164,815.20 : x
  2. Step 2: Convert to fraction form
    333,554.40/499,991.40 = 164,815.20/x
  3. Step 3: Cross multiply
    333,554.40x = 499,991.40 × 164,815.20
  4. Step 4: Simplify right side
    333,554.40x = 82,406,182,589.28
  5. Step 5: Solve for x
    x = 82,406,182,589.28/333,554.40
  6. Step 6: Final answer
    x = 247,054.70

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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.