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Finding the Fourth Proportional to 80,518.80, 120,655.04 and 33,746.16

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Solution

The fourth proportional to 80,518.80, 120,655.04 and 33,746.16 is: 50,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518.80 : 120,655.04 = 33,746.16 : x
  2. Step 2: Convert to fraction form
    80,518.80/120,655.04 = 33,746.16/x
  3. Step 3: Cross multiply
    80,518.80x = 120,655.04 × 33,746.16
  4. Step 4: Simplify right side
    80,518.80x = 4,071,644,284.65
  5. Step 5: Solve for x
    x = 4,071,644,284.65/80,518.80
  6. Step 6: Final answer
    x = 50,567.62

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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.