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Finding the Fourth Proportional to 247,989.96, 371,929.05 and 70,493.04

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Solution

The fourth proportional to 247,989.96, 371,929.05 and 70,493.04 is: 105,723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,989.96 : 371,929.05 = 70,493.04 : x
  2. Step 2: Convert to fraction form
    247,989.96/371,929.05 = 70,493.04/x
  3. Step 3: Cross multiply
    247,989.96x = 371,929.05 × 70,493.04
  4. Step 4: Simplify right side
    247,989.96x = 26,218,409,398.81
  5. Step 5: Solve for x
    x = 26,218,409,398.81/247,989.96
  6. Step 6: Final answer
    x = 105,723.67

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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.