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Finding the Fourth Proportional to 114,029.01, 171,064.05 and 39,129.81

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Solution

The fourth proportional to 114,029.01, 171,064.05 and 39,129.81 is: 58,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,029.01 : 171,064.05 = 39,129.81 : x
  2. Step 2: Convert to fraction form
    114,029.01/171,064.05 = 39,129.81/x
  3. Step 3: Cross multiply
    114,029.01x = 171,064.05 × 39,129.81
  4. Step 4: Simplify right side
    114,029.01x = 6,693,703,774.33
  5. Step 5: Solve for x
    x = 6,693,703,774.33/114,029.01
  6. Step 6: Final answer
    x = 58,701.76

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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.