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Finding the Fourth Proportional to 178,751.79, 246,617.40 and 101,216.87

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Solution

The fourth proportional to 178,751.79, 246,617.40 and 101,216.87 is: 139,645.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,751.79 : 246,617.40 = 101,216.87 : x
  2. Step 2: Convert to fraction form
    178,751.79/246,617.40 = 101,216.87/x
  3. Step 3: Cross multiply
    178,751.79x = 246,617.40 × 101,216.87
  4. Step 4: Simplify right side
    178,751.79x = 24,961,839,981.54
  5. Step 5: Solve for x
    x = 24,961,839,981.54/178,751.79
  6. Step 6: Final answer
    x = 139,645.26

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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.