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Finding the Fourth Proportional to 355,148.20, 532,139.10 and 295,661.80

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Solution

The fourth proportional to 355,148.20, 532,139.10 and 295,661.80 is: 443,007.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,148.20 : 532,139.10 = 295,661.80 : x
  2. Step 2: Convert to fraction form
    355,148.20/532,139.10 = 295,661.80/x
  3. Step 3: Cross multiply
    355,148.20x = 532,139.10 × 295,661.80
  4. Step 4: Simplify right side
    355,148.20x = 157,333,204,156.38
  5. Step 5: Solve for x
    x = 157,333,204,156.38/355,148.20
  6. Step 6: Final answer
    x = 443,007.18

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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.