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Finding the Fourth Proportional to 123,442.48, 170,361.11 and 69,737.35

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Solution

The fourth proportional to 123,442.48, 170,361.11 and 69,737.35 is: 96,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,442.48 : 170,361.11 = 69,737.35 : x
  2. Step 2: Convert to fraction form
    123,442.48/170,361.11 = 69,737.35/x
  3. Step 3: Cross multiply
    123,442.48x = 170,361.11 × 69,737.35
  4. Step 4: Simplify right side
    123,442.48x = 11,880,532,005.77
  5. Step 5: Solve for x
    x = 11,880,532,005.77/123,442.48
  6. Step 6: Final answer
    x = 96,243.47

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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.