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Finding the Fourth Proportional to 61,798.80, 92,698.20 and 54,022.80

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Solution

The fourth proportional to 61,798.80, 92,698.20 and 54,022.80 is: 81,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.80 : 92,698.20 = 54,022.80 : x
  2. Step 2: Convert to fraction form
    61,798.80/92,698.20 = 54,022.80/x
  3. Step 3: Cross multiply
    61,798.80x = 92,698.20 × 54,022.80
  4. Step 4: Simplify right side
    61,798.80x = 5,007,816,318.96
  5. Step 5: Solve for x
    x = 5,007,816,318.96/61,798.80
  6. Step 6: Final answer
    x = 81,034.20

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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.