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Finding the Fourth Proportional to 208,465.44, 312,716.61 and 58,707.06

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Solution

The fourth proportional to 208,465.44, 312,716.61 and 58,707.06 is: 88,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,465.44 : 312,716.61 = 58,707.06 : x
  2. Step 2: Convert to fraction form
    208,465.44/312,716.61 = 58,707.06/x
  3. Step 3: Cross multiply
    208,465.44x = 312,716.61 × 58,707.06
  4. Step 4: Simplify right side
    208,465.44x = 18,358,672,786.27
  5. Step 5: Solve for x
    x = 18,358,672,786.27/208,465.44
  6. Step 6: Final answer
    x = 88,065.79

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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.