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Finding the Fourth Proportional to 349,794.60, 525,080.70 and 192,330.60

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Solution

The fourth proportional to 349,794.60, 525,080.70 and 192,330.60 is: 288,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,794.60 : 525,080.70 = 192,330.60 : x
  2. Step 2: Convert to fraction form
    349,794.60/525,080.70 = 192,330.60/x
  3. Step 3: Cross multiply
    349,794.60x = 525,080.70 × 192,330.60
  4. Step 4: Simplify right side
    349,794.60x = 100,989,086,079.42
  5. Step 5: Solve for x
    x = 100,989,086,079.42/349,794.60
  6. Step 6: Final answer
    x = 288,709.68

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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.