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Finding the Fourth Proportional to 125,905.55, 188,858.33 and 97,365.20

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Solution

The fourth proportional to 125,905.55, 188,858.33 and 97,365.20 is: 146,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,905.55 : 188,858.33 = 97,365.20 : x
  2. Step 2: Convert to fraction form
    125,905.55/188,858.33 = 97,365.20/x
  3. Step 3: Cross multiply
    125,905.55x = 188,858.33 × 97,365.20
  4. Step 4: Simplify right side
    125,905.55x = 18,388,229,072.12
  5. Step 5: Solve for x
    x = 18,388,229,072.12/125,905.55
  6. Step 6: Final answer
    x = 146,047.80

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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.