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Finding the Fourth Proportional to 101,611.88, 140,224.37 and 56,292.81

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Solution

The fourth proportional to 101,611.88, 140,224.37 and 56,292.81 is: 77,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,611.88 : 140,224.37 = 56,292.81 : x
  2. Step 2: Convert to fraction form
    101,611.88/140,224.37 = 56,292.81/x
  3. Step 3: Cross multiply
    101,611.88x = 140,224.37 × 56,292.81
  4. Step 4: Simplify right side
    101,611.88x = 7,893,623,817.78
  5. Step 5: Solve for x
    x = 7,893,623,817.78/101,611.88
  6. Step 6: Final answer
    x = 77,684.06

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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.