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Finding the Fourth Proportional to 84,859.34, 117,105.94 and 47,133.59

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Solution

The fourth proportional to 84,859.34, 117,105.94 and 47,133.59 is: 65,044.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,859.34 : 117,105.94 = 47,133.59 : x
  2. Step 2: Convert to fraction form
    84,859.34/117,105.94 = 47,133.59/x
  3. Step 3: Cross multiply
    84,859.34x = 117,105.94 × 47,133.59
  4. Step 4: Simplify right side
    84,859.34x = 5,519,623,126.86
  5. Step 5: Solve for x
    x = 5,519,623,126.86/84,859.34
  6. Step 6: Final answer
    x = 65,044.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.