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Finding the Fourth Proportional to 355,242.71, 533,074.16 and 130,760.83

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Solution

The fourth proportional to 355,242.71, 533,074.16 and 130,760.83 is: 196,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,242.71 : 533,074.16 = 130,760.83 : x
  2. Step 2: Convert to fraction form
    355,242.71/533,074.16 = 130,760.83/x
  3. Step 3: Cross multiply
    355,242.71x = 533,074.16 × 130,760.83
  4. Step 4: Simplify right side
    355,242.71x = 69,705,220,606.40
  5. Step 5: Solve for x
    x = 69,705,220,606.40/355,242.71
  6. Step 6: Final answer
    x = 196,218.58

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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.