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Finding the Fourth Proportional to 186,486.42, 257,147.61 and 125,951.97

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Solution

The fourth proportional to 186,486.42, 257,147.61 and 125,951.97 is: 173,676.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,486.42 : 257,147.61 = 125,951.97 : x
  2. Step 2: Convert to fraction form
    186,486.42/257,147.61 = 125,951.97/x
  3. Step 3: Cross multiply
    186,486.42x = 257,147.61 × 125,951.97
  4. Step 4: Simplify right side
    186,486.42x = 32,388,248,060.29
  5. Step 5: Solve for x
    x = 32,388,248,060.29/186,486.42
  6. Step 6: Final answer
    x = 173,676.17

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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.