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Finding the Fourth Proportional to 248,972.80, 373,013.70 and 151,421.80

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Solution

The fourth proportional to 248,972.80, 373,013.70 and 151,421.80 is: 226,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,972.80 : 373,013.70 = 151,421.80 : x
  2. Step 2: Convert to fraction form
    248,972.80/373,013.70 = 151,421.80/x
  3. Step 3: Cross multiply
    248,972.80x = 373,013.70 × 151,421.80
  4. Step 4: Simplify right side
    248,972.80x = 56,482,405,878.66
  5. Step 5: Solve for x
    x = 56,482,405,878.66/248,972.80
  6. Step 6: Final answer
    x = 226,861.75

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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.