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Finding the Fourth Proportional to 46,187.40, 69,183.90 and 38,411.40

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Solution

The fourth proportional to 46,187.40, 69,183.90 and 38,411.40 is: 57,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,187.40 : 69,183.90 = 38,411.40 : x
  2. Step 2: Convert to fraction form
    46,187.40/69,183.90 = 38,411.40/x
  3. Step 3: Cross multiply
    46,187.40x = 69,183.90 × 38,411.40
  4. Step 4: Simplify right side
    46,187.40x = 2,657,450,456.46
  5. Step 5: Solve for x
    x = 2,657,450,456.46/46,187.40
  6. Step 6: Final answer
    x = 57,536.26

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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.