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Finding the Fourth Proportional to 356,847.60, 535,243.59 and 132,102.30

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Solution

The fourth proportional to 356,847.60, 535,243.59 and 132,102.30 is: 198,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,847.60 : 535,243.59 = 132,102.30 : x
  2. Step 2: Convert to fraction form
    356,847.60/535,243.59 = 132,102.30/x
  3. Step 3: Cross multiply
    356,847.60x = 535,243.59 × 132,102.30
  4. Step 4: Simplify right side
    356,847.60x = 70,706,909,299.26
  5. Step 5: Solve for x
    x = 70,706,909,299.26/356,847.60
  6. Step 6: Final answer
    x = 198,143.15

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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.