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Finding the Fourth Proportional to 106,958.66, 147,618.51 and 61,627.88

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Solution

The fourth proportional to 106,958.66, 147,618.51 and 61,627.88 is: 85,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,958.66 : 147,618.51 = 61,627.88 : x
  2. Step 2: Convert to fraction form
    106,958.66/147,618.51 = 61,627.88/x
  3. Step 3: Cross multiply
    106,958.66x = 147,618.51 × 61,627.88
  4. Step 4: Simplify right side
    106,958.66x = 9,097,415,820.06
  5. Step 5: Solve for x
    x = 9,097,415,820.06/106,958.66
  6. Step 6: Final answer
    x = 85,055.44

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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.