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Finding the Fourth Proportional to 99,093.84, 136,749.59 and 56,653.26

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Solution

The fourth proportional to 99,093.84, 136,749.59 and 56,653.26 is: 78,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,093.84 : 136,749.59 = 56,653.26 : x
  2. Step 2: Convert to fraction form
    99,093.84/136,749.59 = 56,653.26/x
  3. Step 3: Cross multiply
    99,093.84x = 136,749.59 × 56,653.26
  4. Step 4: Simplify right side
    99,093.84x = 7,747,310,077.16
  5. Step 5: Solve for x
    x = 7,747,310,077.16/99,093.84
  6. Step 6: Final answer
    x = 78,181.55

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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.