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Finding the Fourth Proportional to 165,590, 248,408.36 and 53,232.56

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Solution

The fourth proportional to 165,590, 248,408.36 and 53,232.56 is: 79,856.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,590 : 248,408.36 = 53,232.56 : x
  2. Step 2: Convert to fraction form
    165,590/248,408.36 = 53,232.56/x
  3. Step 3: Cross multiply
    165,590x = 248,408.36 × 53,232.56
  4. Step 4: Simplify right side
    165,590x = 13,223,412,928.20
  5. Step 5: Solve for x
    x = 13,223,412,928.20/165,590
  6. Step 6: Final answer
    x = 79,856.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.