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Finding the Fourth Proportional to 312,019.72, 468,062.30 and 101,673.96

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Solution

The fourth proportional to 312,019.72, 468,062.30 and 101,673.96 is: 152,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,019.72 : 468,062.30 = 101,673.96 : x
  2. Step 2: Convert to fraction form
    312,019.72/468,062.30 = 101,673.96/x
  3. Step 3: Cross multiply
    312,019.72x = 468,062.30 × 101,673.96
  4. Step 4: Simplify right side
    312,019.72x = 47,589,747,567.71
  5. Step 5: Solve for x
    x = 47,589,747,567.71/312,019.72
  6. Step 6: Final answer
    x = 152,521.60

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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.