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Finding the Fourth Proportional to 86,607, 119,517.66 and 46,863

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Solution

The fourth proportional to 86,607, 119,517.66 and 46,863 is: 64,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,607 : 119,517.66 = 46,863 : x
  2. Step 2: Convert to fraction form
    86,607/119,517.66 = 46,863/x
  3. Step 3: Cross multiply
    86,607x = 119,517.66 × 46,863
  4. Step 4: Simplify right side
    86,607x = 5,600,956,100.58
  5. Step 5: Solve for x
    x = 5,600,956,100.58/86,607
  6. Step 6: Final answer
    x = 64,670.94

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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.