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Finding the Fourth Proportional to 118,127, 177,219.66 and 35,021

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Solution

The fourth proportional to 118,127, 177,219.66 and 35,021 is: 52,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,127 : 177,219.66 = 35,021 : x
  2. Step 2: Convert to fraction form
    118,127/177,219.66 = 35,021/x
  3. Step 3: Cross multiply
    118,127x = 177,219.66 × 35,021
  4. Step 4: Simplify right side
    118,127x = 6,206,409,712.86
  5. Step 5: Solve for x
    x = 6,206,409,712.86/118,127
  6. Step 6: Final answer
    x = 52,540.15

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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.