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Finding the Fourth Proportional to 125,719, 188,538.30 and 41,463.40

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Solution

The fourth proportional to 125,719, 188,538.30 and 41,463.40 is: 62,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,719 : 188,538.30 = 41,463.40 : x
  2. Step 2: Convert to fraction form
    125,719/188,538.30 = 41,463.40/x
  3. Step 3: Cross multiply
    125,719x = 188,538.30 × 41,463.40
  4. Step 4: Simplify right side
    125,719x = 7,817,438,948.22
  5. Step 5: Solve for x
    x = 7,817,438,948.22/125,719
  6. Step 6: Final answer
    x = 62,181.84

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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.