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Finding the Fourth Proportional to 467,121.60, 700,423.20 and 186,321.60

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Solution

The fourth proportional to 467,121.60, 700,423.20 and 186,321.60 is: 279,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,121.60 : 700,423.20 = 186,321.60 : x
  2. Step 2: Convert to fraction form
    467,121.60/700,423.20 = 186,321.60/x
  3. Step 3: Cross multiply
    467,121.60x = 700,423.20 × 186,321.60
  4. Step 4: Simplify right side
    467,121.60x = 130,503,971,301.12
  5. Step 5: Solve for x
    x = 130,503,971,301.12/467,121.60
  6. Step 6: Final answer
    x = 279,379.01

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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.