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Finding the Fourth Proportional to 88,999.29, 133,520.76 and 40,945.41

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Solution

The fourth proportional to 88,999.29, 133,520.76 and 40,945.41 is: 61,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,999.29 : 133,520.76 = 40,945.41 : x
  2. Step 2: Convert to fraction form
    88,999.29/133,520.76 = 40,945.41/x
  3. Step 3: Cross multiply
    88,999.29x = 133,520.76 × 40,945.41
  4. Step 4: Simplify right side
    88,999.29x = 5,467,062,261.71
  5. Step 5: Solve for x
    x = 5,467,062,261.71/88,999.29
  6. Step 6: Final answer
    x = 61,428.16

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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.