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Finding the Fourth Proportional to 111,596.76, 167,184.09 and 86,513.94

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Solution

The fourth proportional to 111,596.76, 167,184.09 and 86,513.94 is: 129,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,596.76 : 167,184.09 = 86,513.94 : x
  2. Step 2: Convert to fraction form
    111,596.76/167,184.09 = 86,513.94/x
  3. Step 3: Cross multiply
    111,596.76x = 167,184.09 × 86,513.94
  4. Step 4: Simplify right side
    111,596.76x = 14,463,754,331.21
  5. Step 5: Solve for x
    x = 14,463,754,331.21/111,596.76
  6. Step 6: Final answer
    x = 129,607.30

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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.