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Finding the Fourth Proportional to 86,610.78, 119,523.18 and 46,866.78

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Solution

The fourth proportional to 86,610.78, 119,523.18 and 46,866.78 is: 64,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,610.78 : 119,523.18 = 46,866.78 : x
  2. Step 2: Convert to fraction form
    86,610.78/119,523.18 = 46,866.78/x
  3. Step 3: Cross multiply
    86,610.78x = 119,523.18 × 46,866.78
  4. Step 4: Simplify right side
    86,610.78x = 5,601,666,581.96
  5. Step 5: Solve for x
    x = 5,601,666,581.96/86,610.78
  6. Step 6: Final answer
    x = 64,676.32

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1.5x scale

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.