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Finding the Fourth Proportional to 228,474.07, 315,304.07 and 126,499.53

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Solution

The fourth proportional to 228,474.07, 315,304.07 and 126,499.53 is: 174,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,474.07 : 315,304.07 = 126,499.53 : x
  2. Step 2: Convert to fraction form
    228,474.07/315,304.07 = 126,499.53/x
  3. Step 3: Cross multiply
    228,474.07x = 315,304.07 × 126,499.53
  4. Step 4: Simplify right side
    228,474.07x = 39,885,814,878.87
  5. Step 5: Solve for x
    x = 39,885,814,878.87/228,474.07
  6. Step 6: Final answer
    x = 174,574.80

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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.