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Finding the Fourth Proportional to 347,485.73, 521,565.65 and 167,697.71

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Solution

The fourth proportional to 347,485.73, 521,565.65 and 167,697.71 is: 251,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,485.73 : 521,565.65 = 167,697.71 : x
  2. Step 2: Convert to fraction form
    347,485.73/521,565.65 = 167,697.71/x
  3. Step 3: Cross multiply
    347,485.73x = 521,565.65 × 167,697.71
  4. Step 4: Simplify right side
    347,485.73x = 87,465,361,673.34
  5. Step 5: Solve for x
    x = 87,465,361,673.34/347,485.73
  6. Step 6: Final answer
    x = 251,709.22

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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.