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Finding the Fourth Proportional to 188,784.90, 283,177.35 and 64,125.90

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Solution

The fourth proportional to 188,784.90, 283,177.35 and 64,125.90 is: 96,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,784.90 : 283,177.35 = 64,125.90 : x
  2. Step 2: Convert to fraction form
    188,784.90/283,177.35 = 64,125.90/x
  3. Step 3: Cross multiply
    188,784.90x = 283,177.35 × 64,125.90
  4. Step 4: Simplify right side
    188,784.90x = 18,159,002,428.37
  5. Step 5: Solve for x
    x = 18,159,002,428.37/188,784.90
  6. Step 6: Final answer
    x = 96,188.85

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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.