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Finding the Fourth Proportional to 83,990.36, 115,907.01 and 46,264.52

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Solution

The fourth proportional to 83,990.36, 115,907.01 and 46,264.52 is: 63,845.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990.36 : 115,907.01 = 46,264.52 : x
  2. Step 2: Convert to fraction form
    83,990.36/115,907.01 = 46,264.52/x
  3. Step 3: Cross multiply
    83,990.36x = 115,907.01 × 46,264.52
  4. Step 4: Simplify right side
    83,990.36x = 5,362,382,182.29
  5. Step 5: Solve for x
    x = 5,362,382,182.29/83,990.36
  6. Step 6: Final answer
    x = 63,845.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.