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Finding the Fourth Proportional to 112,005.99, 167,614.16 and 69,905.78

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Solution

The fourth proportional to 112,005.99, 167,614.16 and 69,905.78 is: 104,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,005.99 : 167,614.16 = 69,905.78 : x
  2. Step 2: Convert to fraction form
    112,005.99/167,614.16 = 69,905.78/x
  3. Step 3: Cross multiply
    112,005.99x = 167,614.16 × 69,905.78
  4. Step 4: Simplify right side
    112,005.99x = 11,717,199,370.85
  5. Step 5: Solve for x
    x = 11,717,199,370.85/112,005.99
  6. Step 6: Final answer
    x = 104,612.26

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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.