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Finding the Fourth Proportional to 103,696.02, 143,100.49 and 58,984.02

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Solution

The fourth proportional to 103,696.02, 143,100.49 and 58,984.02 is: 81,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,696.02 : 143,100.49 = 58,984.02 : x
  2. Step 2: Convert to fraction form
    103,696.02/143,100.49 = 58,984.02/x
  3. Step 3: Cross multiply
    103,696.02x = 143,100.49 × 58,984.02
  4. Step 4: Simplify right side
    103,696.02x = 8,440,642,164.17
  5. Step 5: Solve for x
    x = 8,440,642,164.17/103,696.02
  6. Step 6: Final answer
    x = 81,397.94

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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.