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Finding the Fourth Proportional to 270,011.90, 405,075.15 and 92,471.24

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Solution

The fourth proportional to 270,011.90, 405,075.15 and 92,471.24 is: 138,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,011.90 : 405,075.15 = 92,471.24 : x
  2. Step 2: Convert to fraction form
    270,011.90/405,075.15 = 92,471.24/x
  3. Step 3: Cross multiply
    270,011.90x = 405,075.15 × 92,471.24
  4. Step 4: Simplify right side
    270,011.90x = 37,457,799,388.31
  5. Step 5: Solve for x
    x = 37,457,799,388.31/270,011.90
  6. Step 6: Final answer
    x = 138,726.48

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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.