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Finding the Fourth Proportional to 125,904.50, 188,856.87 and 52,034.42

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Solution

The fourth proportional to 125,904.50, 188,856.87 and 52,034.42 is: 78,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,904.50 : 188,856.87 = 52,034.42 : x
  2. Step 2: Convert to fraction form
    125,904.50/188,856.87 = 52,034.42/x
  3. Step 3: Cross multiply
    125,904.50x = 188,856.87 × 52,034.42
  4. Step 4: Simplify right side
    125,904.50x = 9,827,057,693.47
  5. Step 5: Solve for x
    x = 9,827,057,693.47/125,904.50
  6. Step 6: Final answer
    x = 78,051.68

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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.