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Finding the Fourth Proportional to 65,116.52, 89,828.32 and 43,858.88

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Solution

The fourth proportional to 65,116.52, 89,828.32 and 43,858.88 is: 60,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,116.52 : 89,828.32 = 43,858.88 : x
  2. Step 2: Convert to fraction form
    65,116.52/89,828.32 = 43,858.88/x
  3. Step 3: Cross multiply
    65,116.52x = 89,828.32 × 43,858.88
  4. Step 4: Simplify right side
    65,116.52x = 3,939,769,507.48
  5. Step 5: Solve for x
    x = 3,939,769,507.48/65,116.52
  6. Step 6: Final answer
    x = 60,503.38

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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.