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Finding the Fourth Proportional to 188,907, 260,691.66 and 104,023.86

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Solution

The fourth proportional to 188,907, 260,691.66 and 104,023.86 is: 143,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907 : 260,691.66 = 104,023.86 : x
  2. Step 2: Convert to fraction form
    188,907/260,691.66 = 104,023.86/x
  3. Step 3: Cross multiply
    188,907x = 260,691.66 × 104,023.86
  4. Step 4: Simplify right side
    188,907x = 27,118,152,743.01
  5. Step 5: Solve for x
    x = 27,118,152,743.01/188,907
  6. Step 6: Final answer
    x = 143,552.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.