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Finding the Fourth Proportional to 367,152.70, 550,623.19 and 100,921.90

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Solution

The fourth proportional to 367,152.70, 550,623.19 and 100,921.90 is: 151,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,152.70 : 550,623.19 = 100,921.90 : x
  2. Step 2: Convert to fraction form
    367,152.70/550,623.19 = 100,921.90/x
  3. Step 3: Cross multiply
    367,152.70x = 550,623.19 × 100,921.90
  4. Step 4: Simplify right side
    367,152.70x = 55,569,938,518.86
  5. Step 5: Solve for x
    x = 55,569,938,518.86/367,152.70
  6. Step 6: Final answer
    x = 151,353.75

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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.