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Finding the Fourth Proportional to 186,603.48, 280,021.32 and 75,795.48

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Solution

The fourth proportional to 186,603.48, 280,021.32 and 75,795.48 is: 113,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,603.48 : 280,021.32 = 75,795.48 : x
  2. Step 2: Convert to fraction form
    186,603.48/280,021.32 = 75,795.48/x
  3. Step 3: Cross multiply
    186,603.48x = 280,021.32 × 75,795.48
  4. Step 4: Simplify right side
    186,603.48x = 21,224,350,359.63
  5. Step 5: Solve for x
    x = 21,224,350,359.63/186,603.48
  6. Step 6: Final answer
    x = 113,740.38

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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.