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Finding the Fourth Proportional to 110,498.60, 165,747.90 and 99,439.40

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Solution

The fourth proportional to 110,498.60, 165,747.90 and 99,439.40 is: 149,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,498.60 : 165,747.90 = 99,439.40 : x
  2. Step 2: Convert to fraction form
    110,498.60/165,747.90 = 99,439.40/x
  3. Step 3: Cross multiply
    110,498.60x = 165,747.90 × 99,439.40
  4. Step 4: Simplify right side
    110,498.60x = 16,481,871,727.26
  5. Step 5: Solve for x
    x = 16,481,871,727.26/110,498.60
  6. Step 6: Final answer
    x = 149,159.10

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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.