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Finding the Fourth Proportional to 46,699.40, 70,221.90 and 39,096.20

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Solution

The fourth proportional to 46,699.40, 70,221.90 and 39,096.20 is: 58,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,699.40 : 70,221.90 = 39,096.20 : x
  2. Step 2: Convert to fraction form
    46,699.40/70,221.90 = 39,096.20/x
  3. Step 3: Cross multiply
    46,699.40x = 70,221.90 × 39,096.20
  4. Step 4: Simplify right side
    46,699.40x = 2,745,409,446.78
  5. Step 5: Solve for x
    x = 2,745,409,446.78/46,699.40
  6. Step 6: Final answer
    x = 58,788.97

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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.