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Finding the Fourth Proportional to 110,533.60, 165,800.40 and 103,972.60

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Solution

The fourth proportional to 110,533.60, 165,800.40 and 103,972.60 is: 155,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,533.60 : 165,800.40 = 103,972.60 : x
  2. Step 2: Convert to fraction form
    110,533.60/165,800.40 = 103,972.60/x
  3. Step 3: Cross multiply
    110,533.60x = 165,800.40 × 103,972.60
  4. Step 4: Simplify right side
    110,533.60x = 17,238,698,669.04
  5. Step 5: Solve for x
    x = 17,238,698,669.04/110,533.60
  6. Step 6: Final answer
    x = 155,958.90

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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.