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Finding the Fourth Proportional to 111,588.01, 167,170.92 and 86,505.15

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Solution

The fourth proportional to 111,588.01, 167,170.92 and 86,505.15 is: 129,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,588.01 : 167,170.92 = 86,505.15 : x
  2. Step 2: Convert to fraction form
    111,588.01/167,170.92 = 86,505.15/x
  3. Step 3: Cross multiply
    111,588.01x = 167,170.92 × 86,505.15
  4. Step 4: Simplify right side
    111,588.01x = 14,461,145,510.24
  5. Step 5: Solve for x
    x = 14,461,145,510.24/111,588.01
  6. Step 6: Final answer
    x = 129,594.08

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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.