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Finding the Fourth Proportional to 108,592.20, 162,758.70 and 45,412.20

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Solution

The fourth proportional to 108,592.20, 162,758.70 and 45,412.20 is: 68,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,592.20 : 162,758.70 = 45,412.20 : x
  2. Step 2: Convert to fraction form
    108,592.20/162,758.70 = 45,412.20/x
  3. Step 3: Cross multiply
    108,592.20x = 162,758.70 × 45,412.20
  4. Step 4: Simplify right side
    108,592.20x = 7,391,230,636.14
  5. Step 5: Solve for x
    x = 7,391,230,636.14/108,592.20
  6. Step 6: Final answer
    x = 68,064.10

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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.