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Finding the Fourth Proportional to 104,465.70, 156,698.55 and 25,580.70

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Solution

The fourth proportional to 104,465.70, 156,698.55 and 25,580.70 is: 38,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,465.70 : 156,698.55 = 25,580.70 : x
  2. Step 2: Convert to fraction form
    104,465.70/156,698.55 = 25,580.70/x
  3. Step 3: Cross multiply
    104,465.70x = 156,698.55 × 25,580.70
  4. Step 4: Simplify right side
    104,465.70x = 4,008,458,597.99
  5. Step 5: Solve for x
    x = 4,008,458,597.99/104,465.70
  6. Step 6: Final answer
    x = 38,371.05

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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.