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Finding the Fourth Proportional to 163,092.80, 244,639.20 and 142,356.80

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Solution

The fourth proportional to 163,092.80, 244,639.20 and 142,356.80 is: 213,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,092.80 : 244,639.20 = 142,356.80 : x
  2. Step 2: Convert to fraction form
    163,092.80/244,639.20 = 142,356.80/x
  3. Step 3: Cross multiply
    163,092.80x = 244,639.20 × 142,356.80
  4. Step 4: Simplify right side
    163,092.80x = 34,826,053,666.56
  5. Step 5: Solve for x
    x = 34,826,053,666.56/163,092.80
  6. Step 6: Final answer
    x = 213,535.20

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1.5x scale

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.