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Finding the Fourth Proportional to 73,187.55, 100,994.85 and 47,300.76

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Solution

The fourth proportional to 73,187.55, 100,994.85 and 47,300.76 is: 65,272.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,187.55 : 100,994.85 = 47,300.76 : x
  2. Step 2: Convert to fraction form
    73,187.55/100,994.85 = 47,300.76/x
  3. Step 3: Cross multiply
    73,187.55x = 100,994.85 × 47,300.76
  4. Step 4: Simplify right side
    73,187.55x = 4,777,133,161.09
  5. Step 5: Solve for x
    x = 4,777,133,161.09/73,187.55
  6. Step 6: Final answer
    x = 65,272.48

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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.