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Finding the Fourth Proportional to 106,696.60, 147,195.06 and 64,230.53

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Solution

The fourth proportional to 106,696.60, 147,195.06 and 64,230.53 is: 88,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,696.60 : 147,195.06 = 64,230.53 : x
  2. Step 2: Convert to fraction form
    106,696.60/147,195.06 = 64,230.53/x
  3. Step 3: Cross multiply
    106,696.60x = 147,195.06 × 64,230.53
  4. Step 4: Simplify right side
    106,696.60x = 9,454,416,717.18
  5. Step 5: Solve for x
    x = 9,454,416,717.18/106,696.60
  6. Step 6: Final answer
    x = 88,610.29

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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.