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Finding the Fourth Proportional to 72,587.40, 108,912.28 and 37,551.66

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Solution

The fourth proportional to 72,587.40, 108,912.28 and 37,551.66 is: 56,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587.40 : 108,912.28 = 37,551.66 : x
  2. Step 2: Convert to fraction form
    72,587.40/108,912.28 = 37,551.66/x
  3. Step 3: Cross multiply
    72,587.40x = 108,912.28 × 37,551.66
  4. Step 4: Simplify right side
    72,587.40x = 4,089,836,908.38
  5. Step 5: Solve for x
    x = 4,089,836,908.38/72,587.40
  6. Step 6: Final answer
    x = 56,343.62

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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.