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Finding the Fourth Proportional to 100,595.39, 150,892.49 and 25,715.43

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Solution

The fourth proportional to 100,595.39, 150,892.49 and 25,715.43 is: 38,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,595.39 : 150,892.49 = 25,715.43 : x
  2. Step 2: Convert to fraction form
    100,595.39/150,892.49 = 25,715.43/x
  3. Step 3: Cross multiply
    100,595.39x = 150,892.49 × 25,715.43
  4. Step 4: Simplify right side
    100,595.39x = 3,880,265,328.41
  5. Step 5: Solve for x
    x = 3,880,265,328.41/100,595.39
  6. Step 6: Final answer
    x = 38,573.00

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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.