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Finding the Fourth Proportional to 148,572, 222,832.11 and 68,603.16

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Solution

The fourth proportional to 148,572, 222,832.11 and 68,603.16 is: 102,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,572 : 222,832.11 = 68,603.16 : x
  2. Step 2: Convert to fraction form
    148,572/222,832.11 = 68,603.16/x
  3. Step 3: Cross multiply
    148,572x = 222,832.11 × 68,603.16
  4. Step 4: Simplify right side
    148,572x = 15,286,986,895.47
  5. Step 5: Solve for x
    x = 15,286,986,895.47/148,572
  6. Step 6: Final answer
    x = 102,892.79

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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.