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Finding the Fourth Proportional to 99,823.70, 149,735.55 and 92,606.60

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Solution

The fourth proportional to 99,823.70, 149,735.55 and 92,606.60 is: 138,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,823.70 : 149,735.55 = 92,606.60 : x
  2. Step 2: Convert to fraction form
    99,823.70/149,735.55 = 92,606.60/x
  3. Step 3: Cross multiply
    99,823.70x = 149,735.55 × 92,606.60
  4. Step 4: Simplify right side
    99,823.70x = 13,866,500,184.63
  5. Step 5: Solve for x
    x = 13,866,500,184.63/99,823.70
  6. Step 6: Final answer
    x = 138,909.90

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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.