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Finding the Fourth Proportional to 107,164.32, 160,735.09 and 43,991.07

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Solution

The fourth proportional to 107,164.32, 160,735.09 and 43,991.07 is: 65,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,164.32 : 160,735.09 = 43,991.07 : x
  2. Step 2: Convert to fraction form
    107,164.32/160,735.09 = 43,991.07/x
  3. Step 3: Cross multiply
    107,164.32x = 160,735.09 × 43,991.07
  4. Step 4: Simplify right side
    107,164.32x = 7,070,908,595.65
  5. Step 5: Solve for x
    x = 7,070,908,595.65/107,164.32
  6. Step 6: Final answer
    x = 65,981.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.