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Finding the Fourth Proportional to 218,364.57, 327,021.98 and 124,586.01

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Solution

The fourth proportional to 218,364.57, 327,021.98 and 124,586.01 is: 186,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,364.57 : 327,021.98 = 124,586.01 : x
  2. Step 2: Convert to fraction form
    218,364.57/327,021.98 = 124,586.01/x
  3. Step 3: Cross multiply
    218,364.57x = 327,021.98 × 124,586.01
  4. Step 4: Simplify right side
    218,364.57x = 40,742,363,047.57
  5. Step 5: Solve for x
    x = 40,742,363,047.57/218,364.57
  6. Step 6: Final answer
    x = 186,579.55

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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.