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Finding the Fourth Proportional to 186,603.75, 279,905.63 and 61,944.75

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Solution

The fourth proportional to 186,603.75, 279,905.63 and 61,944.75 is: 92,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,603.75 : 279,905.63 = 61,944.75 : x
  2. Step 2: Convert to fraction form
    186,603.75/279,905.63 = 61,944.75/x
  3. Step 3: Cross multiply
    186,603.75x = 279,905.63 × 61,944.75
  4. Step 4: Simplify right side
    186,603.75x = 17,338,683,964.22
  5. Step 5: Solve for x
    x = 17,338,683,964.22/186,603.75
  6. Step 6: Final answer
    x = 92,917.13

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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.