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Finding the Fourth Proportional to 206,304.02, 309,458.74 and 66,062.64

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Solution

The fourth proportional to 206,304.02, 309,458.74 and 66,062.64 is: 99,094.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,304.02 : 309,458.74 = 66,062.64 : x
  2. Step 2: Convert to fraction form
    206,304.02/309,458.74 = 66,062.64/x
  3. Step 3: Cross multiply
    206,304.02x = 309,458.74 × 66,062.64
  4. Step 4: Simplify right side
    206,304.02x = 20,443,661,335.47
  5. Step 5: Solve for x
    x = 20,443,661,335.47/206,304.02
  6. Step 6: Final answer
    x = 99,094.83

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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.