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Finding the Fourth Proportional to 165,089.40, 247,634.10 and 106,040.40

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Solution

The fourth proportional to 165,089.40, 247,634.10 and 106,040.40 is: 159,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,089.40 : 247,634.10 = 106,040.40 : x
  2. Step 2: Convert to fraction form
    165,089.40/247,634.10 = 106,040.40/x
  3. Step 3: Cross multiply
    165,089.40x = 247,634.10 × 106,040.40
  4. Step 4: Simplify right side
    165,089.40x = 26,259,219,017.64
  5. Step 5: Solve for x
    x = 26,259,219,017.64/165,089.40
  6. Step 6: Final answer
    x = 159,060.60

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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.