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Finding the Fourth Proportional to 159,219.67, 219,598.77 and 98,756.41

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Solution

The fourth proportional to 159,219.67, 219,598.77 and 98,756.41 is: 136,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,219.67 : 219,598.77 = 98,756.41 : x
  2. Step 2: Convert to fraction form
    159,219.67/219,598.77 = 98,756.41/x
  3. Step 3: Cross multiply
    159,219.67x = 219,598.77 × 98,756.41
  4. Step 4: Simplify right side
    159,219.67x = 21,686,786,165.62
  5. Step 5: Solve for x
    x = 21,686,786,165.62/159,219.67
  6. Step 6: Final answer
    x = 136,206.70

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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.