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Finding the Fourth Proportional to 92,750.49, 127,898.87 and 55,017.45

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Solution

The fourth proportional to 92,750.49, 127,898.87 and 55,017.45 is: 75,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,750.49 : 127,898.87 = 55,017.45 : x
  2. Step 2: Convert to fraction form
    92,750.49/127,898.87 = 55,017.45/x
  3. Step 3: Cross multiply
    92,750.49x = 127,898.87 × 55,017.45
  4. Step 4: Simplify right side
    92,750.49x = 7,036,669,410.19
  5. Step 5: Solve for x
    x = 7,036,669,410.19/92,750.49
  6. Step 6: Final answer
    x = 75,866.65

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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.