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Finding the Fourth Proportional to 75,122.79, 103,665.50 and 41,124.76

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Solution

The fourth proportional to 75,122.79, 103,665.50 and 41,124.76 is: 56,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,122.79 : 103,665.50 = 41,124.76 : x
  2. Step 2: Convert to fraction form
    75,122.79/103,665.50 = 41,124.76/x
  3. Step 3: Cross multiply
    75,122.79x = 103,665.50 × 41,124.76
  4. Step 4: Simplify right side
    75,122.79x = 4,263,218,497.21
  5. Step 5: Solve for x
    x = 4,263,218,497.21/75,122.79
  6. Step 6: Final answer
    x = 56,750.01

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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.