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Finding the Fourth Proportional to 188,239.60, 259,784.28 and 124,466.80

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Solution

The fourth proportional to 188,239.60, 259,784.28 and 124,466.80 is: 171,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,239.60 : 259,784.28 = 124,466.80 : x
  2. Step 2: Convert to fraction form
    188,239.60/259,784.28 = 124,466.80/x
  3. Step 3: Cross multiply
    188,239.60x = 259,784.28 × 124,466.80
  4. Step 4: Simplify right side
    188,239.60x = 32,334,518,021.90
  5. Step 5: Solve for x
    x = 32,334,518,021.90/188,239.60
  6. Step 6: Final answer
    x = 171,773.20

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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.