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Finding the Fourth Proportional to 101,759, 140,422.52 and 56,433.44

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Solution

The fourth proportional to 101,759, 140,422.52 and 56,433.44 is: 77,875.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,759 : 140,422.52 = 56,433.44 : x
  2. Step 2: Convert to fraction form
    101,759/140,422.52 = 56,433.44/x
  3. Step 3: Cross multiply
    101,759x = 140,422.52 × 56,433.44
  4. Step 4: Simplify right side
    101,759x = 7,924,525,857.07
  5. Step 5: Solve for x
    x = 7,924,525,857.07/101,759
  6. Step 6: Final answer
    x = 77,875.43

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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.