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Finding the Fourth Proportional to 123,670.76, 170,665.64 and 69,954.62

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Solution

The fourth proportional to 123,670.76, 170,665.64 and 69,954.62 is: 96,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670.76 : 170,665.64 = 69,954.62 : x
  2. Step 2: Convert to fraction form
    123,670.76/170,665.64 = 69,954.62/x
  3. Step 3: Cross multiply
    123,670.76x = 170,665.64 × 69,954.62
  4. Step 4: Simplify right side
    123,670.76x = 11,938,849,993.26
  5. Step 5: Solve for x
    x = 11,938,849,993.26/123,670.76
  6. Step 6: Final answer
    x = 96,537.37

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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.