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Finding the Fourth Proportional to 99,699.55, 149,564.25 and 32,209.03

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Solution

The fourth proportional to 99,699.55, 149,564.25 and 32,209.03 is: 48,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699.55 : 149,564.25 = 32,209.03 : x
  2. Step 2: Convert to fraction form
    99,699.55/149,564.25 = 32,209.03/x
  3. Step 3: Cross multiply
    99,699.55x = 149,564.25 × 32,209.03
  4. Step 4: Simplify right side
    99,699.55x = 4,817,319,415.18
  5. Step 5: Solve for x
    x = 4,817,319,415.18/99,699.55
  6. Step 6: Final answer
    x = 48,318.37

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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.