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Finding the Fourth Proportional to 86,474, 119,334.28 and 46,730

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Solution

The fourth proportional to 86,474, 119,334.28 and 46,730 is: 64,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,474 : 119,334.28 = 46,730 : x
  2. Step 2: Convert to fraction form
    86,474/119,334.28 = 46,730/x
  3. Step 3: Cross multiply
    86,474x = 119,334.28 × 46,730
  4. Step 4: Simplify right side
    86,474x = 5,576,490,904.40
  5. Step 5: Solve for x
    x = 5,576,490,904.40/86,474
  6. Step 6: Final answer
    x = 64,487.49

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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.