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Finding the Fourth Proportional to 591,391.66, 886,990.40 and 164,956.50

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Solution

The fourth proportional to 591,391.66, 886,990.40 and 164,956.50 is: 247,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,391.66 : 886,990.40 = 164,956.50 : x
  2. Step 2: Convert to fraction form
    591,391.66/886,990.40 = 164,956.50/x
  3. Step 3: Cross multiply
    591,391.66x = 886,990.40 × 164,956.50
  4. Step 4: Simplify right side
    591,391.66x = 146,314,831,917.60
  5. Step 5: Solve for x
    x = 146,314,831,917.60/591,391.66
  6. Step 6: Final answer
    x = 247,407.67

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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.