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Finding the Fourth Proportional to 63,978.07, 95,889.27 and 45,263.50

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Solution

The fourth proportional to 63,978.07, 95,889.27 and 45,263.50 is: 67,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,978.07 : 95,889.27 = 45,263.50 : x
  2. Step 2: Convert to fraction form
    63,978.07/95,889.27 = 45,263.50/x
  3. Step 3: Cross multiply
    63,978.07x = 95,889.27 × 45,263.50
  4. Step 4: Simplify right side
    63,978.07x = 4,340,283,266.88
  5. Step 5: Solve for x
    x = 4,340,283,266.88/63,978.07
  6. Step 6: Final answer
    x = 67,840.18

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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.