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Finding the Fourth Proportional to 106,994.55, 147,652.25 and 61,672.23

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Solution

The fourth proportional to 106,994.55, 147,652.25 and 61,672.23 is: 85,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,994.55 : 147,652.25 = 61,672.23 : x
  2. Step 2: Convert to fraction form
    106,994.55/147,652.25 = 61,672.23/x
  3. Step 3: Cross multiply
    106,994.55x = 147,652.25 × 61,672.23
  4. Step 4: Simplify right side
    106,994.55x = 9,106,043,213.66
  5. Step 5: Solve for x
    x = 9,106,043,213.66/106,994.55
  6. Step 6: Final answer
    x = 85,107.54

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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.