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Finding the Fourth Proportional to 88,812.72, 133,313.90 and 38,236.77

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Solution

The fourth proportional to 88,812.72, 133,313.90 and 38,236.77 is: 57,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,812.72 : 133,313.90 = 38,236.77 : x
  2. Step 2: Convert to fraction form
    88,812.72/133,313.90 = 38,236.77/x
  3. Step 3: Cross multiply
    88,812.72x = 133,313.90 × 38,236.77
  4. Step 4: Simplify right side
    88,812.72x = 5,097,492,740.92
  5. Step 5: Solve for x
    x = 5,097,492,740.92/88,812.72
  6. Step 6: Final answer
    x = 57,395.98

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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.