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Finding the Fourth Proportional to 106,628.16, 147,149.16 and 58,884.60

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Solution

The fourth proportional to 106,628.16, 147,149.16 and 58,884.60 is: 81,262.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,628.16 : 147,149.16 = 58,884.60 : x
  2. Step 2: Convert to fraction form
    106,628.16/147,149.16 = 58,884.60/x
  3. Step 3: Cross multiply
    106,628.16x = 147,149.16 × 58,884.60
  4. Step 4: Simplify right side
    106,628.16x = 8,664,819,426.94
  5. Step 5: Solve for x
    x = 8,664,819,426.94/106,628.16
  6. Step 6: Final answer
    x = 81,262.02

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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.