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Finding the Fourth Proportional to 123,670.99, 170,666.36 and 67,082.77

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Solution

The fourth proportional to 123,670.99, 170,666.36 and 67,082.77 is: 92,574.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670.99 : 170,666.36 = 67,082.77 : x
  2. Step 2: Convert to fraction form
    123,670.99/170,666.36 = 67,082.77/x
  3. Step 3: Cross multiply
    123,670.99x = 170,666.36 × 67,082.77
  4. Step 4: Simplify right side
    123,670.99x = 11,448,772,174.62
  5. Step 5: Solve for x
    x = 11,448,772,174.62/123,670.99
  6. Step 6: Final answer
    x = 92,574.44

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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.