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Finding the Fourth Proportional to 161,643.99, 223,075.62 and 90,024

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Solution

The fourth proportional to 161,643.99, 223,075.62 and 90,024 is: 124,236.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,643.99 : 223,075.62 = 90,024 : x
  2. Step 2: Convert to fraction form
    161,643.99/223,075.62 = 90,024/x
  3. Step 3: Cross multiply
    161,643.99x = 223,075.62 × 90,024
  4. Step 4: Simplify right side
    161,643.99x = 20,082,159,614.88
  5. Step 5: Solve for x
    x = 20,082,159,614.88/161,643.99
  6. Step 6: Final answer
    x = 124,236.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.