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Finding the Fourth Proportional to 228,667.79, 343,212.49 and 116,428.93

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Solution

The fourth proportional to 228,667.79, 343,212.49 and 116,428.93 is: 174,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,667.79 : 343,212.49 = 116,428.93 : x
  2. Step 2: Convert to fraction form
    228,667.79/343,212.49 = 116,428.93/x
  3. Step 3: Cross multiply
    228,667.79x = 343,212.49 × 116,428.93
  4. Step 4: Simplify right side
    228,667.79x = 39,959,862,260.84
  5. Step 5: Solve for x
    x = 39,959,862,260.84/228,667.79
  6. Step 6: Final answer
    x = 174,750.72

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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.