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Finding the Fourth Proportional to 106,993.62, 147,633.81 and 61,673.46

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Solution

The fourth proportional to 106,993.62, 147,633.81 and 61,673.46 is: 85,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,993.62 : 147,633.81 = 61,673.46 : x
  2. Step 2: Convert to fraction form
    106,993.62/147,633.81 = 61,673.46/x
  3. Step 3: Cross multiply
    106,993.62x = 147,633.81 × 61,673.46
  4. Step 4: Simplify right side
    106,993.62x = 9,105,087,875.68
  5. Step 5: Solve for x
    x = 9,105,087,875.68/106,993.62
  6. Step 6: Final answer
    x = 85,099.35

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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.