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Finding the Fourth Proportional to 46,579.99, 69,782.51 and 36,140.71

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Solution

The fourth proportional to 46,579.99, 69,782.51 and 36,140.71 is: 54,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,579.99 : 69,782.51 = 36,140.71 : x
  2. Step 2: Convert to fraction form
    46,579.99/69,782.51 = 36,140.71/x
  3. Step 3: Cross multiply
    46,579.99x = 69,782.51 × 36,140.71
  4. Step 4: Simplify right side
    46,579.99x = 2,521,989,276.28
  5. Step 5: Solve for x
    x = 2,521,989,276.28/46,579.99
  6. Step 6: Final answer
    x = 54,143.19

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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.