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Finding the Fourth Proportional to 355,132.83, 490,065.29 and 193,957.01

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Solution

The fourth proportional to 355,132.83, 490,065.29 and 193,957.01 is: 267,650.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,132.83 : 490,065.29 = 193,957.01 : x
  2. Step 2: Convert to fraction form
    355,132.83/490,065.29 = 193,957.01/x
  3. Step 3: Cross multiply
    355,132.83x = 490,065.29 × 193,957.01
  4. Step 4: Simplify right side
    355,132.83x = 95,051,594,933.07
  5. Step 5: Solve for x
    x = 95,051,594,933.07/355,132.83
  6. Step 6: Final answer
    x = 267,650.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.