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Finding the Fourth Proportional to 174,422.40, 261,741.60 and 69,230.40

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Solution

The fourth proportional to 174,422.40, 261,741.60 and 69,230.40 is: 103,888.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,422.40 : 261,741.60 = 69,230.40 : x
  2. Step 2: Convert to fraction form
    174,422.40/261,741.60 = 69,230.40/x
  3. Step 3: Cross multiply
    174,422.40x = 261,741.60 × 69,230.40
  4. Step 4: Simplify right side
    174,422.40x = 18,120,475,664.64
  5. Step 5: Solve for x
    x = 18,120,475,664.64/174,422.40
  6. Step 6: Final answer
    x = 103,888.47

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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.