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Finding the Fourth Proportional to 66,124.87, 91,250.54 and 35,908.81

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Solution

The fourth proportional to 66,124.87, 91,250.54 and 35,908.81 is: 49,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,124.87 : 91,250.54 = 35,908.81 : x
  2. Step 2: Convert to fraction form
    66,124.87/91,250.54 = 35,908.81/x
  3. Step 3: Cross multiply
    66,124.87x = 91,250.54 × 35,908.81
  4. Step 4: Simplify right side
    66,124.87x = 3,276,698,123.71
  5. Step 5: Solve for x
    x = 3,276,698,123.71/66,124.87
  6. Step 6: Final answer
    x = 49,553.19

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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.