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Finding the Fourth Proportional to 248,861.80, 373,292.70 and 143,885.80

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Solution

The fourth proportional to 248,861.80, 373,292.70 and 143,885.80 is: 215,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,861.80 : 373,292.70 = 143,885.80 : x
  2. Step 2: Convert to fraction form
    248,861.80/373,292.70 = 143,885.80/x
  3. Step 3: Cross multiply
    248,861.80x = 373,292.70 × 143,885.80
  4. Step 4: Simplify right side
    248,861.80x = 53,711,518,773.66
  5. Step 5: Solve for x
    x = 53,711,518,773.66/248,861.80
  6. Step 6: Final answer
    x = 215,828.70

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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.