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Finding the Fourth Proportional to 270,647.20, 373,560.72 and 163,280.80

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Solution

The fourth proportional to 270,647.20, 373,560.72 and 163,280.80 is: 225,368.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,647.20 : 373,560.72 = 163,280.80 : x
  2. Step 2: Convert to fraction form
    270,647.20/373,560.72 = 163,280.80/x
  3. Step 3: Cross multiply
    270,647.20x = 373,560.72 × 163,280.80
  4. Step 4: Simplify right side
    270,647.20x = 60,995,293,210.18
  5. Step 5: Solve for x
    x = 60,995,293,210.18/270,647.20
  6. Step 6: Final answer
    x = 225,368.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.