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Finding the Fourth Proportional to 75,674.60, 114,078.63 and 70,600.04

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Solution

The fourth proportional to 75,674.60, 114,078.63 and 70,600.04 is: 106,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,674.60 : 114,078.63 = 70,600.04 : x
  2. Step 2: Convert to fraction form
    75,674.60/114,078.63 = 70,600.04/x
  3. Step 3: Cross multiply
    75,674.60x = 114,078.63 × 70,600.04
  4. Step 4: Simplify right side
    75,674.60x = 8,053,955,841.15
  5. Step 5: Solve for x
    x = 8,053,955,841.15/75,674.60
  6. Step 6: Final answer
    x = 106,428.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.