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Finding the Fourth Proportional to 105,881.34, 158,883.97 and 39,367.38

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Solution

The fourth proportional to 105,881.34, 158,883.97 and 39,367.38 is: 59,074.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,881.34 : 158,883.97 = 39,367.38 : x
  2. Step 2: Convert to fraction form
    105,881.34/158,883.97 = 39,367.38/x
  3. Step 3: Cross multiply
    105,881.34x = 158,883.97 × 39,367.38
  4. Step 4: Simplify right side
    105,881.34x = 6,254,845,274.90
  5. Step 5: Solve for x
    x = 6,254,845,274.90/105,881.34
  6. Step 6: Final answer
    x = 59,074.11

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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.