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Finding the Fourth Proportional to 163,515.80, 244,928.10 and 146,005.40

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Solution

The fourth proportional to 163,515.80, 244,928.10 and 146,005.40 is: 218,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,515.80 : 244,928.10 = 146,005.40 : x
  2. Step 2: Convert to fraction form
    163,515.80/244,928.10 = 146,005.40/x
  3. Step 3: Cross multiply
    163,515.80x = 244,928.10 × 146,005.40
  4. Step 4: Simplify right side
    163,515.80x = 35,760,825,211.74
  5. Step 5: Solve for x
    x = 35,760,825,211.74/163,515.80
  6. Step 6: Final answer
    x = 218,699.51

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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.