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Finding the Fourth Proportional to 86,469, 119,327.22 and 46,725

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Solution

The fourth proportional to 86,469, 119,327.22 and 46,725 is: 64,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,469 : 119,327.22 = 46,725 : x
  2. Step 2: Convert to fraction form
    86,469/119,327.22 = 46,725/x
  3. Step 3: Cross multiply
    86,469x = 119,327.22 × 46,725
  4. Step 4: Simplify right side
    86,469x = 5,575,564,354.50
  5. Step 5: Solve for x
    x = 5,575,564,354.50/86,469
  6. Step 6: Final answer
    x = 64,480.50

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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.