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Finding the Fourth Proportional to 108,533.70, 162,800.55 and 75,291.30

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Solution

The fourth proportional to 108,533.70, 162,800.55 and 75,291.30 is: 112,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,533.70 : 162,800.55 = 75,291.30 : x
  2. Step 2: Convert to fraction form
    108,533.70/162,800.55 = 75,291.30/x
  3. Step 3: Cross multiply
    108,533.70x = 162,800.55 × 75,291.30
  4. Step 4: Simplify right side
    108,533.70x = 12,257,465,050.22
  5. Step 5: Solve for x
    x = 12,257,465,050.22/108,533.70
  6. Step 6: Final answer
    x = 112,936.95

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1.5x scale

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.