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Finding the Fourth Proportional to 147,019.50, 202,887.63 and 79,951.50

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Solution

The fourth proportional to 147,019.50, 202,887.63 and 79,951.50 is: 110,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,019.50 : 202,887.63 = 79,951.50 : x
  2. Step 2: Convert to fraction form
    147,019.50/202,887.63 = 79,951.50/x
  3. Step 3: Cross multiply
    147,019.50x = 202,887.63 × 79,951.50
  4. Step 4: Simplify right side
    147,019.50x = 16,221,170,349.95
  5. Step 5: Solve for x
    x = 16,221,170,349.95/147,019.50
  6. Step 6: Final answer
    x = 110,333.46

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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.