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Finding the Fourth Proportional to 204,722.80, 306,646.80 and 169,730.80

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Solution

The fourth proportional to 204,722.80, 306,646.80 and 169,730.80 is: 254,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,722.80 : 306,646.80 = 169,730.80 : x
  2. Step 2: Convert to fraction form
    204,722.80/306,646.80 = 169,730.80/x
  3. Step 3: Cross multiply
    204,722.80x = 306,646.80 × 169,730.80
  4. Step 4: Simplify right side
    204,722.80x = 52,047,406,681.44
  5. Step 5: Solve for x
    x = 52,047,406,681.44/204,722.80
  6. Step 6: Final answer
    x = 254,233.56

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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.