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Finding the Fourth Proportional to 106,958.12, 147,555.86 and 64,493.06

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Solution

The fourth proportional to 106,958.12, 147,555.86 and 64,493.06 is: 88,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,958.12 : 147,555.86 = 64,493.06 : x
  2. Step 2: Convert to fraction form
    106,958.12/147,555.86 = 64,493.06/x
  3. Step 3: Cross multiply
    106,958.12x = 147,555.86 × 64,493.06
  4. Step 4: Simplify right side
    106,958.12x = 9,516,328,932.33
  5. Step 5: Solve for x
    x = 9,516,328,932.33/106,958.12
  6. Step 6: Final answer
    x = 88,972.48

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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.