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Finding the Fourth Proportional to 206,652.20, 309,905.40 and 94,386.20

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Solution

The fourth proportional to 206,652.20, 309,905.40 and 94,386.20 is: 141,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,652.20 : 309,905.40 = 94,386.20 : x
  2. Step 2: Convert to fraction form
    206,652.20/309,905.40 = 94,386.20/x
  3. Step 3: Cross multiply
    206,652.20x = 309,905.40 × 94,386.20
  4. Step 4: Simplify right side
    206,652.20x = 29,250,793,065.48
  5. Step 5: Solve for x
    x = 29,250,793,065.48/206,652.20
  6. Step 6: Final answer
    x = 141,546.00

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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.