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Finding the Fourth Proportional to 125,615.39, 188,403.30 and 104,404.30

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Solution

The fourth proportional to 125,615.39, 188,403.30 and 104,404.30 is: 156,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,615.39 : 188,403.30 = 104,404.30 : x
  2. Step 2: Convert to fraction form
    125,615.39/188,403.30 = 104,404.30/x
  3. Step 3: Cross multiply
    125,615.39x = 188,403.30 × 104,404.30
  4. Step 4: Simplify right side
    125,615.39x = 19,670,115,618.01
  5. Step 5: Solve for x
    x = 19,670,115,618.01/125,615.39
  6. Step 6: Final answer
    x = 156,590.02

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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.