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Finding the Fourth Proportional to 163,212.66, 244,790.78 and 43,270.40

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Solution

The fourth proportional to 163,212.66, 244,790.78 and 43,270.40 is: 64,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,212.66 : 244,790.78 = 43,270.40 : x
  2. Step 2: Convert to fraction form
    163,212.66/244,790.78 = 43,270.40/x
  3. Step 3: Cross multiply
    163,212.66x = 244,790.78 × 43,270.40
  4. Step 4: Simplify right side
    163,212.66x = 10,592,195,362.54
  5. Step 5: Solve for x
    x = 10,592,195,362.54/163,212.66
  6. Step 6: Final answer
    x = 64,898.12

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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.