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Finding the Fourth Proportional to 133,792.56, 184,632.21 and 77,202.72

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Solution

The fourth proportional to 133,792.56, 184,632.21 and 77,202.72 is: 106,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,792.56 : 184,632.21 = 77,202.72 : x
  2. Step 2: Convert to fraction form
    133,792.56/184,632.21 = 77,202.72/x
  3. Step 3: Cross multiply
    133,792.56x = 184,632.21 × 77,202.72
  4. Step 4: Simplify right side
    133,792.56x = 14,254,108,811.61
  5. Step 5: Solve for x
    x = 14,254,108,811.61/133,792.56
  6. Step 6: Final answer
    x = 106,538.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.