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Finding the Fourth Proportional to 186,104.70, 256,811.85 and 101,219.94

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Solution

The fourth proportional to 186,104.70, 256,811.85 and 101,219.94 is: 139,676.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,104.70 : 256,811.85 = 101,219.94 : x
  2. Step 2: Convert to fraction form
    186,104.70/256,811.85 = 101,219.94/x
  3. Step 3: Cross multiply
    186,104.70x = 256,811.85 × 101,219.94
  4. Step 4: Simplify right side
    186,104.70x = 25,994,480,048.29
  5. Step 5: Solve for x
    x = 25,994,480,048.29/186,104.70
  6. Step 6: Final answer
    x = 139,676.64

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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.