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Finding the Fourth Proportional to 266,788.89, 400,184.01 and 109,017.32

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Solution

The fourth proportional to 266,788.89, 400,184.01 and 109,017.32 is: 163,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,788.89 : 400,184.01 = 109,017.32 : x
  2. Step 2: Convert to fraction form
    266,788.89/400,184.01 = 109,017.32/x
  3. Step 3: Cross multiply
    266,788.89x = 400,184.01 × 109,017.32
  4. Step 4: Simplify right side
    266,788.89x = 43,626,986,276.13
  5. Step 5: Solve for x
    x = 43,626,986,276.13/266,788.89
  6. Step 6: Final answer
    x = 163,526.25

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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.