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Finding the Fourth Proportional to 298,950.59, 412,318.53 and 191,530.68

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Solution

The fourth proportional to 298,950.59, 412,318.53 and 191,530.68 is: 264,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,950.59 : 412,318.53 = 191,530.68 : x
  2. Step 2: Convert to fraction form
    298,950.59/412,318.53 = 191,530.68/x
  3. Step 3: Cross multiply
    298,950.59x = 412,318.53 × 191,530.68
  4. Step 4: Simplify right side
    298,950.59x = 78,971,648,427.50
  5. Step 5: Solve for x
    x = 78,971,648,427.50/298,950.59
  6. Step 6: Final answer
    x = 264,162.88

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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.