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Finding the Fourth Proportional to 312,567.12, 468,794.66 and 87,873.66

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Solution

The fourth proportional to 312,567.12, 468,794.66 and 87,873.66 is: 131,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,567.12 : 468,794.66 = 87,873.66 : x
  2. Step 2: Convert to fraction form
    312,567.12/468,794.66 = 87,873.66/x
  3. Step 3: Cross multiply
    312,567.12x = 468,794.66 × 87,873.66
  4. Step 4: Simplify right side
    312,567.12x = 41,194,702,123.29
  5. Step 5: Solve for x
    x = 41,194,702,123.29/312,567.12
  6. Step 6: Final answer
    x = 131,794.74

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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.