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Finding the Fourth Proportional to 106,626.53, 147,169.83 and 61,330.68

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Solution

The fourth proportional to 106,626.53, 147,169.83 and 61,330.68 is: 84,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,626.53 : 147,169.83 = 61,330.68 : x
  2. Step 2: Convert to fraction form
    106,626.53/147,169.83 = 61,330.68/x
  3. Step 3: Cross multiply
    106,626.53x = 147,169.83 × 61,330.68
  4. Step 4: Simplify right side
    106,626.53x = 9,026,025,749.38
  5. Step 5: Solve for x
    x = 9,026,025,749.38/106,626.53
  6. Step 6: Final answer
    x = 84,650.85

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1.5x scale

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.