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Finding the Fourth Proportional to 101,347.97, 139,859.25 and 56,027.12

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Solution

The fourth proportional to 101,347.97, 139,859.25 and 56,027.12 is: 77,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,347.97 : 139,859.25 = 56,027.12 : x
  2. Step 2: Convert to fraction form
    101,347.97/139,859.25 = 56,027.12/x
  3. Step 3: Cross multiply
    101,347.97x = 139,859.25 × 56,027.12
  4. Step 4: Simplify right side
    101,347.97x = 7,835,910,283.56
  5. Step 5: Solve for x
    x = 7,835,910,283.56/101,347.97
  6. Step 6: Final answer
    x = 77,316.90

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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.