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Finding the Fourth Proportional to 73,075.57, 100,841.76 and 40,811.85

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Solution

The fourth proportional to 73,075.57, 100,841.76 and 40,811.85 is: 56,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,075.57 : 100,841.76 = 40,811.85 : x
  2. Step 2: Convert to fraction form
    73,075.57/100,841.76 = 40,811.85/x
  3. Step 3: Cross multiply
    73,075.57x = 100,841.76 × 40,811.85
  4. Step 4: Simplify right side
    73,075.57x = 4,115,538,782.86
  5. Step 5: Solve for x
    x = 4,115,538,782.86/73,075.57
  6. Step 6: Final answer
    x = 56,318.94

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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.