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Finding the Fourth Proportional to 667,673.51, 1,001,511.51 and 162,234.90

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Solution

The fourth proportional to 667,673.51, 1,001,511.51 and 162,234.90 is: 243,352.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,673.51 : 1,001,511.51 = 162,234.90 : x
  2. Step 2: Convert to fraction form
    667,673.51/1,001,511.51 = 162,234.90/x
  3. Step 3: Cross multiply
    667,673.51x = 1,001,511.51 × 162,234.90
  4. Step 4: Simplify right side
    667,673.51x = 162,480,119,673.70
  5. Step 5: Solve for x
    x = 162,480,119,673.70/667,673.51
  6. Step 6: Final answer
    x = 243,352.65

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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.