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Finding the Fourth Proportional to 81,011.93, 111,793.84 and 44,216.74

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Solution

The fourth proportional to 81,011.93, 111,793.84 and 44,216.74 is: 61,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,011.93 : 111,793.84 = 44,216.74 : x
  2. Step 2: Convert to fraction form
    81,011.93/111,793.84 = 44,216.74/x
  3. Step 3: Cross multiply
    81,011.93x = 111,793.84 × 44,216.74
  4. Step 4: Simplify right side
    81,011.93x = 4,943,159,156.88
  5. Step 5: Solve for x
    x = 4,943,159,156.88/81,011.93
  6. Step 6: Final answer
    x = 61,017.67

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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.