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Finding the Fourth Proportional to 66,043.23, 98,889.87 and 34,812.87

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Solution

The fourth proportional to 66,043.23, 98,889.87 and 34,812.87 is: 52,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,043.23 : 98,889.87 = 34,812.87 : x
  2. Step 2: Convert to fraction form
    66,043.23/98,889.87 = 34,812.87/x
  3. Step 3: Cross multiply
    66,043.23x = 98,889.87 × 34,812.87
  4. Step 4: Simplify right side
    66,043.23x = 3,442,640,188.63
  5. Step 5: Solve for x
    x = 3,442,640,188.63/66,043.23
  6. Step 6: Final answer
    x = 52,127.07

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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.