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Finding the Fourth Proportional to 80,448.30, 111,019.14 and 44,639.01

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Solution

The fourth proportional to 80,448.30, 111,019.14 and 44,639.01 is: 61,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,448.30 : 111,019.14 = 44,639.01 : x
  2. Step 2: Convert to fraction form
    80,448.30/111,019.14 = 44,639.01/x
  3. Step 3: Cross multiply
    80,448.30x = 111,019.14 × 44,639.01
  4. Step 4: Simplify right side
    80,448.30x = 4,955,784,500.65
  5. Step 5: Solve for x
    x = 4,955,784,500.65/80,448.30
  6. Step 6: Final answer
    x = 61,602.10

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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.