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Finding the Fourth Proportional to 188,548.73, 260,207.76 and 103,683.41

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Solution

The fourth proportional to 188,548.73, 260,207.76 and 103,683.41 is: 143,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,548.73 : 260,207.76 = 103,683.41 : x
  2. Step 2: Convert to fraction form
    188,548.73/260,207.76 = 103,683.41/x
  3. Step 3: Cross multiply
    188,548.73x = 260,207.76 × 103,683.41
  4. Step 4: Simplify right side
    188,548.73x = 26,979,227,865.26
  5. Step 5: Solve for x
    x = 26,979,227,865.26/188,548.73
  6. Step 6: Final answer
    x = 143,088.89

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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.