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Finding the Fourth Proportional to 352,711.80, 486,740.34 and 191,565.54

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Solution

The fourth proportional to 352,711.80, 486,740.34 and 191,565.54 is: 264,359.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,711.80 : 486,740.34 = 191,565.54 : x
  2. Step 2: Convert to fraction form
    352,711.80/486,740.34 = 191,565.54/x
  3. Step 3: Cross multiply
    352,711.80x = 486,740.34 × 191,565.54
  4. Step 4: Simplify right side
    352,711.80x = 93,242,676,071.88
  5. Step 5: Solve for x
    x = 93,242,676,071.88/352,711.80
  6. Step 6: Final answer
    x = 264,359.39

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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.