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Finding the Fourth Proportional to 61,477.80, 92,087.10 and 54,911.40

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Solution

The fourth proportional to 61,477.80, 92,087.10 and 54,911.40 is: 82,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,477.80 : 92,087.10 = 54,911.40 : x
  2. Step 2: Convert to fraction form
    61,477.80/92,087.10 = 54,911.40/x
  3. Step 3: Cross multiply
    61,477.80x = 92,087.10 × 54,911.40
  4. Step 4: Simplify right side
    61,477.80x = 5,056,631,582.94
  5. Step 5: Solve for x
    x = 5,056,631,582.94/61,477.80
  6. Step 6: Final answer
    x = 82,251.34

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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.