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Finding the Fourth Proportional to 357,118.27, 535,335.68 and 132,418.60

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Solution

The fourth proportional to 357,118.27, 535,335.68 and 132,418.60 is: 198,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,118.27 : 535,335.68 = 132,418.60 : x
  2. Step 2: Convert to fraction form
    357,118.27/535,335.68 = 132,418.60/x
  3. Step 3: Cross multiply
    357,118.27x = 535,335.68 × 132,418.60
  4. Step 4: Simplify right side
    357,118.27x = 70,888,400,268.36
  5. Step 5: Solve for x
    x = 70,888,400,268.36/357,118.27
  6. Step 6: Final answer
    x = 198,501.19

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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.