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Finding the Fourth Proportional to 88,647.56, 133,021 and 47,093.48

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Solution

The fourth proportional to 88,647.56, 133,021 and 47,093.48 is: 70,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,647.56 : 133,021 = 47,093.48 : x
  2. Step 2: Convert to fraction form
    88,647.56/133,021 = 47,093.48/x
  3. Step 3: Cross multiply
    88,647.56x = 133,021 × 47,093.48
  4. Step 4: Simplify right side
    88,647.56x = 6,264,421,803.08
  5. Step 5: Solve for x
    x = 6,264,421,803.08/88,647.56
  6. Step 6: Final answer
    x = 70,666.60

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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.