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Finding the Fourth Proportional to 162,813.68, 224,676.76 and 91,190.16

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Solution

The fourth proportional to 162,813.68, 224,676.76 and 91,190.16 is: 125,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,813.68 : 224,676.76 = 91,190.16 : x
  2. Step 2: Convert to fraction form
    162,813.68/224,676.76 = 91,190.16/x
  3. Step 3: Cross multiply
    162,813.68x = 224,676.76 × 91,190.16
  4. Step 4: Simplify right side
    162,813.68x = 20,488,309,692.68
  5. Step 5: Solve for x
    x = 20,488,309,692.68/162,813.68
  6. Step 6: Final answer
    x = 125,838.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.