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Finding the Fourth Proportional to 355,225.59, 533,048.54 and 130,743.69

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Solution

The fourth proportional to 355,225.59, 533,048.54 and 130,743.69 is: 196,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,225.59 : 533,048.54 = 130,743.69 : x
  2. Step 2: Convert to fraction form
    355,225.59/533,048.54 = 130,743.69/x
  3. Step 3: Cross multiply
    355,225.59x = 533,048.54 × 130,743.69
  4. Step 4: Simplify right side
    355,225.59x = 69,692,732,414.99
  5. Step 5: Solve for x
    x = 69,692,732,414.99/355,225.59
  6. Step 6: Final answer
    x = 196,192.88

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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.