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Finding the Fourth Proportional to 86,798, 119,775.57 and 48,550.90

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Solution

The fourth proportional to 86,798, 119,775.57 and 48,550.90 is: 66,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,798 : 119,775.57 = 48,550.90 : x
  2. Step 2: Convert to fraction form
    86,798/119,775.57 = 48,550.90/x
  3. Step 3: Cross multiply
    86,798x = 119,775.57 × 48,550.90
  4. Step 4: Simplify right side
    86,798x = 5,815,211,721.51
  5. Step 5: Solve for x
    x = 5,815,211,721.51/86,798
  6. Step 6: Final answer
    x = 66,997.07

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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.