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Finding the Fourth Proportional to 73,087.54, 109,631.13 and 28,683.23

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Solution

The fourth proportional to 73,087.54, 109,631.13 and 28,683.23 is: 43,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,087.54 : 109,631.13 = 28,683.23 : x
  2. Step 2: Convert to fraction form
    73,087.54/109,631.13 = 28,683.23/x
  3. Step 3: Cross multiply
    73,087.54x = 109,631.13 × 28,683.23
  4. Step 4: Simplify right side
    73,087.54x = 3,144,574,916.95
  5. Step 5: Solve for x
    x = 3,144,574,916.95/73,087.54
  6. Step 6: Final answer
    x = 43,024.77

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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.