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Finding the Fourth Proportional to 624,472.81, 936,711.65 and 151,157.41

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Solution

The fourth proportional to 624,472.81, 936,711.65 and 151,157.41 is: 226,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,472.81 : 936,711.65 = 151,157.41 : x
  2. Step 2: Convert to fraction form
    624,472.81/936,711.65 = 151,157.41/x
  3. Step 3: Cross multiply
    624,472.81x = 936,711.65 × 151,157.41
  4. Step 4: Simplify right side
    624,472.81x = 141,590,906,175.04
  5. Step 5: Solve for x
    x = 141,590,906,175.04/624,472.81
  6. Step 6: Final answer
    x = 226,736.70

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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.