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Finding the Fourth Proportional to 333,291.59, 500,012.39 and 105,600.90

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Solution

The fourth proportional to 333,291.59, 500,012.39 and 105,600.90 is: 158,425.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,291.59 : 500,012.39 = 105,600.90 : x
  2. Step 2: Convert to fraction form
    333,291.59/500,012.39 = 105,600.90/x
  3. Step 3: Cross multiply
    333,291.59x = 500,012.39 × 105,600.90
  4. Step 4: Simplify right side
    333,291.59x = 52,801,757,867.15
  5. Step 5: Solve for x
    x = 52,801,757,867.15/333,291.59
  6. Step 6: Final answer
    x = 158,425.12

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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.