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Finding the Fourth Proportional to 134,608.30, 201,912.45 and 115,909.45

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Solution

The fourth proportional to 134,608.30, 201,912.45 and 115,909.45 is: 173,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,608.30 : 201,912.45 = 115,909.45 : x
  2. Step 2: Convert to fraction form
    134,608.30/201,912.45 = 115,909.45/x
  3. Step 3: Cross multiply
    134,608.30x = 201,912.45 × 115,909.45
  4. Step 4: Simplify right side
    134,608.30x = 23,403,561,027.65
  5. Step 5: Solve for x
    x = 23,403,561,027.65/134,608.30
  6. Step 6: Final answer
    x = 173,864.18

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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.