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Finding the Fourth Proportional to 367,334.30, 550,749.80 and 187,070.78

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Solution

The fourth proportional to 367,334.30, 550,749.80 and 187,070.78 is: 280,478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,334.30 : 550,749.80 = 187,070.78 : x
  2. Step 2: Convert to fraction form
    367,334.30/550,749.80 = 187,070.78/x
  3. Step 3: Cross multiply
    367,334.30x = 550,749.80 × 187,070.78
  4. Step 4: Simplify right side
    367,334.30x = 103,029,194,670.84
  5. Step 5: Solve for x
    x = 103,029,194,670.84/367,334.30
  6. Step 6: Final answer
    x = 280,478.01

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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.