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Finding the Fourth Proportional to 76,419.81, 114,463.80 and 46,747.62

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Solution

The fourth proportional to 76,419.81, 114,463.80 and 46,747.62 is: 70,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,419.81 : 114,463.80 = 46,747.62 : x
  2. Step 2: Convert to fraction form
    76,419.81/114,463.80 = 46,747.62/x
  3. Step 3: Cross multiply
    76,419.81x = 114,463.80 × 46,747.62
  4. Step 4: Simplify right side
    76,419.81x = 5,350,910,226.16
  5. Step 5: Solve for x
    x = 5,350,910,226.16/76,419.81
  6. Step 6: Final answer
    x = 70,019.94

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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.