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Finding the Fourth Proportional to 163,312.80, 244,969.20 and 100,327.20

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Solution

The fourth proportional to 163,312.80, 244,969.20 and 100,327.20 is: 150,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,312.80 : 244,969.20 = 100,327.20 : x
  2. Step 2: Convert to fraction form
    163,312.80/244,969.20 = 100,327.20/x
  3. Step 3: Cross multiply
    163,312.80x = 244,969.20 × 100,327.20
  4. Step 4: Simplify right side
    163,312.80x = 24,577,073,922.24
  5. Step 5: Solve for x
    x = 24,577,073,922.24/163,312.80
  6. Step 6: Final answer
    x = 150,490.80

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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.