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Finding the Fourth Proportional to 89,907.52, 124,071.77 and 49,621.29

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Solution

The fourth proportional to 89,907.52, 124,071.77 and 49,621.29 is: 68,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,907.52 : 124,071.77 = 49,621.29 : x
  2. Step 2: Convert to fraction form
    89,907.52/124,071.77 = 49,621.29/x
  3. Step 3: Cross multiply
    89,907.52x = 124,071.77 × 49,621.29
  4. Step 4: Simplify right side
    89,907.52x = 6,156,600,659.62
  5. Step 5: Solve for x
    x = 6,156,600,659.62/89,907.52
  6. Step 6: Final answer
    x = 68,477.04

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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.