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Finding the Fourth Proportional to 77,803.64, 116,705.46 and 62,147.96

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Solution

The fourth proportional to 77,803.64, 116,705.46 and 62,147.96 is: 93,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,803.64 : 116,705.46 = 62,147.96 : x
  2. Step 2: Convert to fraction form
    77,803.64/116,705.46 = 62,147.96/x
  3. Step 3: Cross multiply
    77,803.64x = 116,705.46 × 62,147.96
  4. Step 4: Simplify right side
    77,803.64x = 7,253,006,259.86
  5. Step 5: Solve for x
    x = 7,253,006,259.86/77,803.64
  6. Step 6: Final answer
    x = 93,221.94

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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.