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Finding the Fourth Proportional to 168,667.98, 253,038.40 and 63,486.64

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Solution

The fourth proportional to 168,667.98, 253,038.40 and 63,486.64 is: 95,243.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,667.98 : 253,038.40 = 63,486.64 : x
  2. Step 2: Convert to fraction form
    168,667.98/253,038.40 = 63,486.64/x
  3. Step 3: Cross multiply
    168,667.98x = 253,038.40 × 63,486.64
  4. Step 4: Simplify right side
    168,667.98x = 16,064,557,806.98
  5. Step 5: Solve for x
    x = 16,064,557,806.98/168,667.98
  6. Step 6: Final answer
    x = 95,243.67

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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.