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Finding the Fourth Proportional to 133,212, 199,916.63 and 63,091.52

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Solution

The fourth proportional to 133,212, 199,916.63 and 63,091.52 is: 94,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,212 : 199,916.63 = 63,091.52 : x
  2. Step 2: Convert to fraction form
    133,212/199,916.63 = 63,091.52/x
  3. Step 3: Cross multiply
    133,212x = 199,916.63 × 63,091.52
  4. Step 4: Simplify right side
    133,212x = 12,613,042,744.94
  5. Step 5: Solve for x
    x = 12,613,042,744.94/133,212
  6. Step 6: Final answer
    x = 94,683.98

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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.