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Finding the Fourth Proportional to 188,468.64, 260,079.59 and 107,903.66

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Solution

The fourth proportional to 188,468.64, 260,079.59 and 107,903.66 is: 148,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,468.64 : 260,079.59 = 107,903.66 : x
  2. Step 2: Convert to fraction form
    188,468.64/260,079.59 = 107,903.66/x
  3. Step 3: Cross multiply
    188,468.64x = 260,079.59 × 107,903.66
  4. Step 4: Simplify right side
    188,468.64x = 28,063,539,652.30
  5. Step 5: Solve for x
    x = 28,063,539,652.30/188,468.64
  6. Step 6: Final answer
    x = 148,902.97

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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.