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Finding the Fourth Proportional to 59,657.72, 89,291.86 and 43,858.57

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Solution

The fourth proportional to 59,657.72, 89,291.86 and 43,858.57 is: 65,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,657.72 : 89,291.86 = 43,858.57 : x
  2. Step 2: Convert to fraction form
    59,657.72/89,291.86 = 43,858.57/x
  3. Step 3: Cross multiply
    59,657.72x = 89,291.86 × 43,858.57
  4. Step 4: Simplify right side
    59,657.72x = 3,916,213,292.24
  5. Step 5: Solve for x
    x = 3,916,213,292.24/59,657.72
  6. Step 6: Final answer
    x = 65,644.70

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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.