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Finding the Fourth Proportional to 206,683.20, 310,024.80 and 56,946.60

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Solution

The fourth proportional to 206,683.20, 310,024.80 and 56,946.60 is: 85,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,683.20 : 310,024.80 = 56,946.60 : x
  2. Step 2: Convert to fraction form
    206,683.20/310,024.80 = 56,946.60/x
  3. Step 3: Cross multiply
    206,683.20x = 310,024.80 × 56,946.60
  4. Step 4: Simplify right side
    206,683.20x = 17,654,858,275.68
  5. Step 5: Solve for x
    x = 17,654,858,275.68/206,683.20
  6. Step 6: Final answer
    x = 85,419.90

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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.