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Finding the Fourth Proportional to 228,470.73, 342,743.01 and 70,699.20

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Solution

The fourth proportional to 228,470.73, 342,743.01 and 70,699.20 is: 106,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,470.73 : 342,743.01 = 70,699.20 : x
  2. Step 2: Convert to fraction form
    228,470.73/342,743.01 = 70,699.20/x
  3. Step 3: Cross multiply
    228,470.73x = 342,743.01 × 70,699.20
  4. Step 4: Simplify right side
    228,470.73x = 24,231,656,612.59
  5. Step 5: Solve for x
    x = 24,231,656,612.59/228,470.73
  6. Step 6: Final answer
    x = 106,060.22

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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.