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Finding the Fourth Proportional to 84,603.42, 116,721.86 and 50,612.90

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Solution

The fourth proportional to 84,603.42, 116,721.86 and 50,612.90 is: 69,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,603.42 : 116,721.86 = 50,612.90 : x
  2. Step 2: Convert to fraction form
    84,603.42/116,721.86 = 50,612.90/x
  3. Step 3: Cross multiply
    84,603.42x = 116,721.86 × 50,612.90
  4. Step 4: Simplify right side
    84,603.42x = 5,907,630,991.32
  5. Step 5: Solve for x
    x = 5,907,630,991.32/84,603.42
  6. Step 6: Final answer
    x = 69,827.33

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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.