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Finding the Fourth Proportional to 357,120.27, 535,338.68 and 132,420.60

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Solution

The fourth proportional to 357,120.27, 535,338.68 and 132,420.60 is: 198,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,120.27 : 535,338.68 = 132,420.60 : x
  2. Step 2: Convert to fraction form
    357,120.27/535,338.68 = 132,420.60/x
  3. Step 3: Cross multiply
    357,120.27x = 535,338.68 × 132,420.60
  4. Step 4: Simplify right side
    357,120.27x = 70,889,869,208.81
  5. Step 5: Solve for x
    x = 70,889,869,208.81/357,120.27
  6. Step 6: Final answer
    x = 198,504.19

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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.