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Finding the Fourth Proportional to 75,591.42, 112,826.51 and 66,733.98

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Solution

The fourth proportional to 75,591.42, 112,826.51 and 66,733.98 is: 99,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,591.42 : 112,826.51 = 66,733.98 : x
  2. Step 2: Convert to fraction form
    75,591.42/112,826.51 = 66,733.98/x
  3. Step 3: Cross multiply
    75,591.42x = 112,826.51 × 66,733.98
  4. Step 4: Simplify right side
    75,591.42x = 7,529,361,728.14
  5. Step 5: Solve for x
    x = 7,529,361,728.14/75,591.42
  6. Step 6: Final answer
    x = 99,606.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.