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Finding the Fourth Proportional to 80,710.96, 111,369.12 and 44,901.40

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Solution

The fourth proportional to 80,710.96, 111,369.12 and 44,901.40 is: 61,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,710.96 : 111,369.12 = 44,901.40 : x
  2. Step 2: Convert to fraction form
    80,710.96/111,369.12 = 44,901.40/x
  3. Step 3: Cross multiply
    80,710.96x = 111,369.12 × 44,901.40
  4. Step 4: Simplify right side
    80,710.96x = 5,000,629,404.77
  5. Step 5: Solve for x
    x = 5,000,629,404.77/80,710.96
  6. Step 6: Final answer
    x = 61,957.25

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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.