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Finding the Fourth Proportional to 73,210.80, 109,690.71 and 49,150.04

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Solution

The fourth proportional to 73,210.80, 109,690.71 and 49,150.04 is: 73,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,210.80 : 109,690.71 = 49,150.04 : x
  2. Step 2: Convert to fraction form
    73,210.80/109,690.71 = 49,150.04/x
  3. Step 3: Cross multiply
    73,210.80x = 109,690.71 × 49,150.04
  4. Step 4: Simplify right side
    73,210.80x = 5,391,302,235.67
  5. Step 5: Solve for x
    x = 5,391,302,235.67/73,210.80
  6. Step 6: Final answer
    x = 73,640.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.