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Finding the Fourth Proportional to 89,984.80, 124,175.64 and 49,697.68

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Solution

The fourth proportional to 89,984.80, 124,175.64 and 49,697.68 is: 68,580.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,984.80 : 124,175.64 = 49,697.68 : x
  2. Step 2: Convert to fraction form
    89,984.80/124,175.64 = 49,697.68/x
  3. Step 3: Cross multiply
    89,984.80x = 124,175.64 × 49,697.68
  4. Step 4: Simplify right side
    89,984.80x = 6,171,241,220.52
  5. Step 5: Solve for x
    x = 6,171,241,220.52/89,984.80
  6. Step 6: Final answer
    x = 68,580.93

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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.