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Finding the Fourth Proportional to 75,330.84, 112,858.48 and 35,276.32

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Solution

The fourth proportional to 75,330.84, 112,858.48 and 35,276.32 is: 52,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,330.84 : 112,858.48 = 35,276.32 : x
  2. Step 2: Convert to fraction form
    75,330.84/112,858.48 = 35,276.32/x
  3. Step 3: Cross multiply
    75,330.84x = 112,858.48 × 35,276.32
  4. Step 4: Simplify right side
    75,330.84x = 3,981,231,855.19
  5. Step 5: Solve for x
    x = 3,981,231,855.19/75,330.84
  6. Step 6: Final answer
    x = 52,849.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.