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Finding the Fourth Proportional to 301,118.76, 451,721.07 and 98,671.56

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Solution

The fourth proportional to 301,118.76, 451,721.07 and 98,671.56 is: 148,021.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,118.76 : 451,721.07 = 98,671.56 : x
  2. Step 2: Convert to fraction form
    301,118.76/451,721.07 = 98,671.56/x
  3. Step 3: Cross multiply
    301,118.76x = 451,721.07 × 98,671.56
  4. Step 4: Simplify right side
    301,118.76x = 44,572,022,661.77
  5. Step 5: Solve for x
    x = 44,572,022,661.77/301,118.76
  6. Step 6: Final answer
    x = 148,021.41

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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.