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Finding the Fourth Proportional to 107,093.80, 147,703.62 and 66,730.60

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Solution

The fourth proportional to 107,093.80, 147,703.62 and 66,730.60 is: 92,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,093.80 : 147,703.62 = 66,730.60 : x
  2. Step 2: Convert to fraction form
    107,093.80/147,703.62 = 66,730.60/x
  3. Step 3: Cross multiply
    107,093.80x = 147,703.62 × 66,730.60
  4. Step 4: Simplify right side
    107,093.80x = 9,856,351,184.77
  5. Step 5: Solve for x
    x = 9,856,351,184.77/107,093.80
  6. Step 6: Final answer
    x = 92,034.75

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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.