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Finding the Fourth Proportional to 80,300.21, 110,809.64 and 44,488.08

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Solution

The fourth proportional to 80,300.21, 110,809.64 and 44,488.08 is: 61,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,300.21 : 110,809.64 = 44,488.08 : x
  2. Step 2: Convert to fraction form
    80,300.21/110,809.64 = 44,488.08/x
  3. Step 3: Cross multiply
    80,300.21x = 110,809.64 × 44,488.08
  4. Step 4: Simplify right side
    80,300.21x = 4,929,708,240.31
  5. Step 5: Solve for x
    x = 4,929,708,240.31/80,300.21
  6. Step 6: Final answer
    x = 61,390.98

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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.