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Finding the Fourth Proportional to 162,808.80, 244,213.20 and 103,686.90

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Solution

The fourth proportional to 162,808.80, 244,213.20 and 103,686.90 is: 155,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,808.80 : 244,213.20 = 103,686.90 : x
  2. Step 2: Convert to fraction form
    162,808.80/244,213.20 = 103,686.90/x
  3. Step 3: Cross multiply
    162,808.80x = 244,213.20 × 103,686.90
  4. Step 4: Simplify right side
    162,808.80x = 25,321,709,647.08
  5. Step 5: Solve for x
    x = 25,321,709,647.08/162,808.80
  6. Step 6: Final answer
    x = 155,530.35

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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.