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Finding the Fourth Proportional to 110,554.59, 165,501.40 and 67,725.10

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Solution

The fourth proportional to 110,554.59, 165,501.40 and 67,725.10 is: 101,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,554.59 : 165,501.40 = 67,725.10 : x
  2. Step 2: Convert to fraction form
    110,554.59/165,501.40 = 67,725.10/x
  3. Step 3: Cross multiply
    110,554.59x = 165,501.40 × 67,725.10
  4. Step 4: Simplify right side
    110,554.59x = 11,208,598,865.14
  5. Step 5: Solve for x
    x = 11,208,598,865.14/110,554.59
  6. Step 6: Final answer
    x = 101,385.20

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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.