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Finding the Fourth Proportional to 357,528.75, 536,293.13 and 132,945.72

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Solution

The fourth proportional to 357,528.75, 536,293.13 and 132,945.72 is: 199,418.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,528.75 : 536,293.13 = 132,945.72 : x
  2. Step 2: Convert to fraction form
    357,528.75/536,293.13 = 132,945.72/x
  3. Step 3: Cross multiply
    357,528.75x = 536,293.13 × 132,945.72
  4. Step 4: Simplify right side
    357,528.75x = 71,297,875,634.18
  5. Step 5: Solve for x
    x = 71,297,875,634.18/357,528.75
  6. Step 6: Final answer
    x = 199,418.58

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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.