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Finding the Fourth Proportional to 89,874.46, 124,041.32 and 53,580.34

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Solution

The fourth proportional to 89,874.46, 124,041.32 and 53,580.34 is: 73,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,874.46 : 124,041.32 = 53,580.34 : x
  2. Step 2: Convert to fraction form
    89,874.46/124,041.32 = 53,580.34/x
  3. Step 3: Cross multiply
    89,874.46x = 124,041.32 × 53,580.34
  4. Step 4: Simplify right side
    89,874.46x = 6,646,175,791.38
  5. Step 5: Solve for x
    x = 6,646,175,791.38/89,874.46
  6. Step 6: Final answer
    x = 73,949.55

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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.