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Finding the Fourth Proportional to 88,912.90, 133,045.35 and 55,648.90

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Solution

The fourth proportional to 88,912.90, 133,045.35 and 55,648.90 is: 83,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912.90 : 133,045.35 = 55,648.90 : x
  2. Step 2: Convert to fraction form
    88,912.90/133,045.35 = 55,648.90/x
  3. Step 3: Cross multiply
    88,912.90x = 133,045.35 × 55,648.90
  4. Step 4: Simplify right side
    88,912.90x = 7,403,827,377.62
  5. Step 5: Solve for x
    x = 7,403,827,377.62/88,912.90
  6. Step 6: Final answer
    x = 83,270.56

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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.