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Finding the Fourth Proportional to 102,620.17, 153,953.34 and 36,064.90

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Solution

The fourth proportional to 102,620.17, 153,953.34 and 36,064.90 is: 54,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,620.17 : 153,953.34 = 36,064.90 : x
  2. Step 2: Convert to fraction form
    102,620.17/153,953.34 = 36,064.90/x
  3. Step 3: Cross multiply
    102,620.17x = 153,953.34 × 36,064.90
  4. Step 4: Simplify right side
    102,620.17x = 5,552,311,811.77
  5. Step 5: Solve for x
    x = 5,552,311,811.77/102,620.17
  6. Step 6: Final answer
    x = 54,105.46

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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.