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Finding the Fourth Proportional to 86,739, 119,699.94 and 46,995

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Solution

The fourth proportional to 86,739, 119,699.94 and 46,995 is: 64,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,739 : 119,699.94 = 46,995 : x
  2. Step 2: Convert to fraction form
    86,739/119,699.94 = 46,995/x
  3. Step 3: Cross multiply
    86,739x = 119,699.94 × 46,995
  4. Step 4: Simplify right side
    86,739x = 5,625,298,680.30
  5. Step 5: Solve for x
    x = 5,625,298,680.30/86,739
  6. Step 6: Final answer
    x = 64,853.17

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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.