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Finding the Fourth Proportional to 88,645.56, 133,018 and 47,091.48

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Solution

The fourth proportional to 88,645.56, 133,018 and 47,091.48 is: 70,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,645.56 : 133,018 = 47,091.48 : x
  2. Step 2: Convert to fraction form
    88,645.56/133,018 = 47,091.48/x
  3. Step 3: Cross multiply
    88,645.56x = 133,018 × 47,091.48
  4. Step 4: Simplify right side
    88,645.56x = 6,264,014,486.64
  5. Step 5: Solve for x
    x = 6,264,014,486.64/88,645.56
  6. Step 6: Final answer
    x = 70,663.60

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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.