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Finding the Fourth Proportional to 73,038.50, 109,557.76 and 23,790.50

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Solution

The fourth proportional to 73,038.50, 109,557.76 and 23,790.50 is: 35,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,038.50 : 109,557.76 = 23,790.50 : x
  2. Step 2: Convert to fraction form
    73,038.50/109,557.76 = 23,790.50/x
  3. Step 3: Cross multiply
    73,038.50x = 109,557.76 × 23,790.50
  4. Step 4: Simplify right side
    73,038.50x = 2,606,433,889.28
  5. Step 5: Solve for x
    x = 2,606,433,889.28/73,038.50
  6. Step 6: Final answer
    x = 35,685.75

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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.