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Finding the Fourth Proportional to 266,041.29, 399,202.06 and 153,800.33

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Solution

The fourth proportional to 266,041.29, 399,202.06 and 153,800.33 is: 230,781.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,041.29 : 399,202.06 = 153,800.33 : x
  2. Step 2: Convert to fraction form
    266,041.29/399,202.06 = 153,800.33/x
  3. Step 3: Cross multiply
    266,041.29x = 399,202.06 × 153,800.33
  4. Step 4: Simplify right side
    266,041.29x = 61,397,408,564.68
  5. Step 5: Solve for x
    x = 61,397,408,564.68/266,041.29
  6. Step 6: Final answer
    x = 230,781.50

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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.