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Finding the Fourth Proportional to 223,266.20, 334,866.90 and 65,478.20

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Solution

The fourth proportional to 223,266.20, 334,866.90 and 65,478.20 is: 98,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,266.20 : 334,866.90 = 65,478.20 : x
  2. Step 2: Convert to fraction form
    223,266.20/334,866.90 = 65,478.20/x
  3. Step 3: Cross multiply
    223,266.20x = 334,866.90 × 65,478.20
  4. Step 4: Simplify right side
    223,266.20x = 21,926,481,851.58
  5. Step 5: Solve for x
    x = 21,926,481,851.58/223,266.20
  6. Step 6: Final answer
    x = 98,207.80

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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.