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Finding the Fourth Proportional to 84,087.72, 116,041.88 and 46,363.32

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Solution

The fourth proportional to 84,087.72, 116,041.88 and 46,363.32 is: 63,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,087.72 : 116,041.88 = 46,363.32 : x
  2. Step 2: Convert to fraction form
    84,087.72/116,041.88 = 46,363.32/x
  3. Step 3: Cross multiply
    84,087.72x = 116,041.88 × 46,363.32
  4. Step 4: Simplify right side
    84,087.72x = 5,380,086,815.84
  5. Step 5: Solve for x
    x = 5,380,086,815.84/84,087.72
  6. Step 6: Final answer
    x = 63,981.84

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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.