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Finding the Fourth Proportional to 133,709.60, 184,412.95 and 113,632.94

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Solution

The fourth proportional to 133,709.60, 184,412.95 and 113,632.94 is: 156,723.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,709.60 : 184,412.95 = 113,632.94 : x
  2. Step 2: Convert to fraction form
    133,709.60/184,412.95 = 113,632.94/x
  3. Step 3: Cross multiply
    133,709.60x = 184,412.95 × 113,632.94
  4. Step 4: Simplify right side
    133,709.60x = 20,955,384,476.43
  5. Step 5: Solve for x
    x = 20,955,384,476.43/133,709.60
  6. Step 6: Final answer
    x = 156,723.12

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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.