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Finding the Fourth Proportional to 223,254.60, 334,918.80 and 103,431.30

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Solution

The fourth proportional to 223,254.60, 334,918.80 and 103,431.30 is: 155,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,254.60 : 334,918.80 = 103,431.30 : x
  2. Step 2: Convert to fraction form
    223,254.60/334,918.80 = 103,431.30/x
  3. Step 3: Cross multiply
    223,254.60x = 334,918.80 × 103,431.30
  4. Step 4: Simplify right side
    223,254.60x = 34,641,086,878.44
  5. Step 5: Solve for x
    x = 34,641,086,878.44/223,254.60
  6. Step 6: Final answer
    x = 155,164.05

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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.