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Finding the Fourth Proportional to 208,465.94, 312,717.36 and 58,707.56

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Solution

The fourth proportional to 208,465.94, 312,717.36 and 58,707.56 is: 88,066.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,465.94 : 312,717.36 = 58,707.56 : x
  2. Step 2: Convert to fraction form
    208,465.94/312,717.36 = 58,707.56/x
  3. Step 3: Cross multiply
    208,465.94x = 312,717.36 × 58,707.56
  4. Step 4: Simplify right side
    208,465.94x = 18,358,873,175.24
  5. Step 5: Solve for x
    x = 18,358,873,175.24/208,465.94
  6. Step 6: Final answer
    x = 88,066.54

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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.