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Finding the Fourth Proportional to 101,994.39, 140,749.25 and 56,671.25

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Solution

The fourth proportional to 101,994.39, 140,749.25 and 56,671.25 is: 78,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,994.39 : 140,749.25 = 56,671.25 : x
  2. Step 2: Convert to fraction form
    101,994.39/140,749.25 = 56,671.25/x
  3. Step 3: Cross multiply
    101,994.39x = 140,749.25 × 56,671.25
  4. Step 4: Simplify right side
    101,994.39x = 7,976,434,946.96
  5. Step 5: Solve for x
    x = 7,976,434,946.96/101,994.39
  6. Step 6: Final answer
    x = 78,204.64

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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.