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Finding the Fourth Proportional to 104,201.19, 143,803.71 and 58,878

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Solution

The fourth proportional to 104,201.19, 143,803.71 and 58,878 is: 81,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,201.19 : 143,803.71 = 58,878 : x
  2. Step 2: Convert to fraction form
    104,201.19/143,803.71 = 58,878/x
  3. Step 3: Cross multiply
    104,201.19x = 143,803.71 × 58,878
  4. Step 4: Simplify right side
    104,201.19x = 8,466,874,837.38
  5. Step 5: Solve for x
    x = 8,466,874,837.38/104,201.19
  6. Step 6: Final answer
    x = 81,255.07

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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.