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Finding the Fourth Proportional to 65,626.88, 98,461.04 and 49,907.21

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Solution

The fourth proportional to 65,626.88, 98,461.04 and 49,907.21 is: 74,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,626.88 : 98,461.04 = 49,907.21 : x
  2. Step 2: Convert to fraction form
    65,626.88/98,461.04 = 49,907.21/x
  3. Step 3: Cross multiply
    65,626.88x = 98,461.04 × 49,907.21
  4. Step 4: Simplify right side
    65,626.88x = 4,913,915,058.26
  5. Step 5: Solve for x
    x = 4,913,915,058.26/65,626.88
  6. Step 6: Final answer
    x = 74,876.57

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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.