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Finding the Fourth Proportional to 110,190.50, 152,062.89 and 65,478.50

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Solution

The fourth proportional to 110,190.50, 152,062.89 and 65,478.50 is: 90,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,190.50 : 152,062.89 = 65,478.50 : x
  2. Step 2: Convert to fraction form
    110,190.50/152,062.89 = 65,478.50/x
  3. Step 3: Cross multiply
    110,190.50x = 152,062.89 × 65,478.50
  4. Step 4: Simplify right side
    110,190.50x = 9,956,849,942.87
  5. Step 5: Solve for x
    x = 9,956,849,942.87/110,190.50
  6. Step 6: Final answer
    x = 90,360.33

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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.