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Finding the Fourth Proportional to 355,041.62, 532,727.09 and 155,335.71

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Solution

The fourth proportional to 355,041.62, 532,727.09 and 155,335.71 is: 233,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,041.62 : 532,727.09 = 155,335.71 : x
  2. Step 2: Convert to fraction form
    355,041.62/532,727.09 = 155,335.71/x
  3. Step 3: Cross multiply
    355,041.62x = 532,727.09 × 155,335.71
  4. Step 4: Simplify right side
    355,041.62x = 82,751,540,761.38
  5. Step 5: Solve for x
    x = 82,751,540,761.38/355,041.62
  6. Step 6: Final answer
    x = 233,075.61

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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.