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Finding the Fourth Proportional to 86,479, 119,341.18 and 46,735

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Solution

The fourth proportional to 86,479, 119,341.18 and 46,735 is: 64,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,479 : 119,341.18 = 46,735 : x
  2. Step 2: Convert to fraction form
    86,479/119,341.18 = 46,735/x
  3. Step 3: Cross multiply
    86,479x = 119,341.18 × 46,735
  4. Step 4: Simplify right side
    86,479x = 5,577,410,047.30
  5. Step 5: Solve for x
    x = 5,577,410,047.30/86,479
  6. Step 6: Final answer
    x = 64,494.39

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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.