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Finding the Fourth Proportional to 186,603.48, 257,518.44 and 101,721.96

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Solution

The fourth proportional to 186,603.48, 257,518.44 and 101,721.96 is: 140,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,603.48 : 257,518.44 = 101,721.96 : x
  2. Step 2: Convert to fraction form
    186,603.48/257,518.44 = 101,721.96/x
  3. Step 3: Cross multiply
    186,603.48x = 257,518.44 × 101,721.96
  4. Step 4: Simplify right side
    186,603.48x = 26,195,280,452.94
  5. Step 5: Solve for x
    x = 26,195,280,452.94/186,603.48
  6. Step 6: Final answer
    x = 140,379.38

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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.