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Finding the Fourth Proportional to 100,893.90, 151,144.02 and 61,352.94

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Solution

The fourth proportional to 100,893.90, 151,144.02 and 61,352.94 is: 91,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,893.90 : 151,144.02 = 61,352.94 : x
  2. Step 2: Convert to fraction form
    100,893.90/151,144.02 = 61,352.94/x
  3. Step 3: Cross multiply
    100,893.90x = 151,144.02 × 61,352.94
  4. Step 4: Simplify right side
    100,893.90x = 9,273,129,990.42
  5. Step 5: Solve for x
    x = 9,273,129,990.42/100,893.90
  6. Step 6: Final answer
    x = 91,909.72

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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.