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Finding the Fourth Proportional to 75,660.71, 104,407.72 and 41,662.56

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Solution

The fourth proportional to 75,660.71, 104,407.72 and 41,662.56 is: 57,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,660.71 : 104,407.72 = 41,662.56 : x
  2. Step 2: Convert to fraction form
    75,660.71/104,407.72 = 41,662.56/x
  3. Step 3: Cross multiply
    75,660.71x = 104,407.72 × 41,662.56
  4. Step 4: Simplify right side
    75,660.71x = 4,349,892,627.98
  5. Step 5: Solve for x
    x = 4,349,892,627.98/75,660.71
  6. Step 6: Final answer
    x = 57,492.10

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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.