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Finding the Fourth Proportional to 228,849.76, 315,700.44 and 198,592.60

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Solution

The fourth proportional to 228,849.76, 315,700.44 and 198,592.60 is: 273,960.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,849.76 : 315,700.44 = 198,592.60 : x
  2. Step 2: Convert to fraction form
    228,849.76/315,700.44 = 198,592.60/x
  3. Step 3: Cross multiply
    228,849.76x = 315,700.44 × 198,592.60
  4. Step 4: Simplify right side
    228,849.76x = 62,695,771,200.74
  5. Step 5: Solve for x
    x = 62,695,771,200.74/228,849.76
  6. Step 6: Final answer
    x = 273,960.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.