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Finding the Fourth Proportional to 355,084.80, 532,173.60 and 144,484.80

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Solution

The fourth proportional to 355,084.80, 532,173.60 and 144,484.80 is: 216,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,084.80 : 532,173.60 = 144,484.80 : x
  2. Step 2: Convert to fraction form
    355,084.80/532,173.60 = 144,484.80/x
  3. Step 3: Cross multiply
    355,084.80x = 532,173.60 × 144,484.80
  4. Step 4: Simplify right side
    355,084.80x = 76,890,996,161.28
  5. Step 5: Solve for x
    x = 76,890,996,161.28/355,084.80
  6. Step 6: Final answer
    x = 216,542.63

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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.