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Finding the Fourth Proportional to 61,026.60, 91,905.60 and 53,711.04

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Solution

The fourth proportional to 61,026.60, 91,905.60 and 53,711.04 is: 80,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,026.60 : 91,905.60 = 53,711.04 : x
  2. Step 2: Convert to fraction form
    61,026.60/91,905.60 = 53,711.04/x
  3. Step 3: Cross multiply
    61,026.60x = 91,905.60 × 53,711.04
  4. Step 4: Simplify right side
    61,026.60x = 4,936,345,357.82
  5. Step 5: Solve for x
    x = 4,936,345,357.82/61,026.60
  6. Step 6: Final answer
    x = 80,888.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.