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Finding the Fourth Proportional to 73,618.19, 110,434.95 and 20,310.17

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Solution

The fourth proportional to 73,618.19, 110,434.95 and 20,310.17 is: 30,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,618.19 : 110,434.95 = 20,310.17 : x
  2. Step 2: Convert to fraction form
    73,618.19/110,434.95 = 20,310.17/x
  3. Step 3: Cross multiply
    73,618.19x = 110,434.95 × 20,310.17
  4. Step 4: Simplify right side
    73,618.19x = 2,242,952,506.89
  5. Step 5: Solve for x
    x = 2,242,952,506.89/73,618.19
  6. Step 6: Final answer
    x = 30,467.37

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1.5x scale

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.