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Finding the Fourth Proportional to 102,568.61, 153,921.63 and 36,008.93

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Solution

The fourth proportional to 102,568.61, 153,921.63 and 36,008.93 is: 54,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,568.61 : 153,921.63 = 36,008.93 : x
  2. Step 2: Convert to fraction form
    102,568.61/153,921.63 = 36,008.93/x
  3. Step 3: Cross multiply
    102,568.61x = 153,921.63 × 36,008.93
  4. Step 4: Simplify right side
    102,568.61x = 5,542,553,719.99
  5. Step 5: Solve for x
    x = 5,542,553,719.99/102,568.61
  6. Step 6: Final answer
    x = 54,037.53

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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.