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Finding the Fourth Proportional to 315,474.75, 473,212.13 and 93,858.75

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Solution

The fourth proportional to 315,474.75, 473,212.13 and 93,858.75 is: 140,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,474.75 : 473,212.13 = 93,858.75 : x
  2. Step 2: Convert to fraction form
    315,474.75/473,212.13 = 93,858.75/x
  3. Step 3: Cross multiply
    315,474.75x = 473,212.13 × 93,858.75
  4. Step 4: Simplify right side
    315,474.75x = 44,415,098,537.34
  5. Step 5: Solve for x
    x = 44,415,098,537.34/315,474.75
  6. Step 6: Final answer
    x = 140,788.13

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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.