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Finding the Fourth Proportional to 163,054.80, 244,582.20 and 142,318.80

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Solution

The fourth proportional to 163,054.80, 244,582.20 and 142,318.80 is: 213,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,054.80 : 244,582.20 = 142,318.80 : x
  2. Step 2: Convert to fraction form
    163,054.80/244,582.20 = 142,318.80/x
  3. Step 3: Cross multiply
    163,054.80x = 244,582.20 × 142,318.80
  4. Step 4: Simplify right side
    163,054.80x = 34,808,645,205.36
  5. Step 5: Solve for x
    x = 34,808,645,205.36/163,054.80
  6. Step 6: Final answer
    x = 213,478.20

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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.