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Finding the Fourth Proportional to 80,215.85, 110,698.75 and 44,406.46

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Solution

The fourth proportional to 80,215.85, 110,698.75 and 44,406.46 is: 61,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,215.85 : 110,698.75 = 44,406.46 : x
  2. Step 2: Convert to fraction form
    80,215.85/110,698.75 = 44,406.46/x
  3. Step 3: Cross multiply
    80,215.85x = 110,698.75 × 44,406.46
  4. Step 4: Simplify right side
    80,215.85x = 4,915,739,807.81
  5. Step 5: Solve for x
    x = 4,915,739,807.81/80,215.85
  6. Step 6: Final answer
    x = 61,281.40

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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.