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Finding the Fourth Proportional to 269,347.23, 403,964.12 and 79,809.20

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Solution

The fourth proportional to 269,347.23, 403,964.12 and 79,809.20 is: 119,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,347.23 : 403,964.12 = 79,809.20 : x
  2. Step 2: Convert to fraction form
    269,347.23/403,964.12 = 79,809.20/x
  3. Step 3: Cross multiply
    269,347.23x = 403,964.12 × 79,809.20
  4. Step 4: Simplify right side
    269,347.23x = 32,240,054,763.84
  5. Step 5: Solve for x
    x = 32,240,054,763.84/269,347.23
  6. Step 6: Final answer
    x = 119,697.00

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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.