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Finding the Fourth Proportional to 163,018.11, 244,528 and 74,209.50

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Solution

The fourth proportional to 163,018.11, 244,528 and 74,209.50 is: 111,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,018.11 : 244,528 = 74,209.50 : x
  2. Step 2: Convert to fraction form
    163,018.11/244,528 = 74,209.50/x
  3. Step 3: Cross multiply
    163,018.11x = 244,528 × 74,209.50
  4. Step 4: Simplify right side
    163,018.11x = 18,146,300,616
  5. Step 5: Solve for x
    x = 18,146,300,616/163,018.11
  6. Step 6: Final answer
    x = 111,314.63

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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.