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Finding the Fourth Proportional to 104,415.70, 156,623.55 and 25,530.70

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Solution

The fourth proportional to 104,415.70, 156,623.55 and 25,530.70 is: 38,296.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,415.70 : 156,623.55 = 25,530.70 : x
  2. Step 2: Convert to fraction form
    104,415.70/156,623.55 = 25,530.70/x
  3. Step 3: Cross multiply
    104,415.70x = 156,623.55 × 25,530.70
  4. Step 4: Simplify right side
    104,415.70x = 3,998,708,867.99
  5. Step 5: Solve for x
    x = 3,998,708,867.99/104,415.70
  6. Step 6: Final answer
    x = 38,296.05

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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.