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Finding the Fourth Proportional to 58,916.76, 81,362.88 and 50,369.28

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Solution

The fourth proportional to 58,916.76, 81,362.88 and 50,369.28 is: 69,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,916.76 : 81,362.88 = 50,369.28 : x
  2. Step 2: Convert to fraction form
    58,916.76/81,362.88 = 50,369.28/x
  3. Step 3: Cross multiply
    58,916.76x = 81,362.88 × 50,369.28
  4. Step 4: Simplify right side
    58,916.76x = 4,098,189,684.33
  5. Step 5: Solve for x
    x = 4,098,189,684.33/58,916.76
  6. Step 6: Final answer
    x = 69,558.98

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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.