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Finding the Fourth Proportional to 106,957.66, 147,617.13 and 61,626.88

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Solution

The fourth proportional to 106,957.66, 147,617.13 and 61,626.88 is: 85,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,957.66 : 147,617.13 = 61,626.88 : x
  2. Step 2: Convert to fraction form
    106,957.66/147,617.13 = 61,626.88/x
  3. Step 3: Cross multiply
    106,957.66x = 147,617.13 × 61,626.88
  4. Step 4: Simplify right side
    106,957.66x = 9,097,183,156.45
  5. Step 5: Solve for x
    x = 9,097,183,156.45/106,957.66
  6. Step 6: Final answer
    x = 85,054.06

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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.