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Finding the Fourth Proportional to 455,062.68, 682,588.55 and 118,073.32

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Solution

The fourth proportional to 455,062.68, 682,588.55 and 118,073.32 is: 177,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,062.68 : 682,588.55 = 118,073.32 : x
  2. Step 2: Convert to fraction form
    455,062.68/682,588.55 = 118,073.32/x
  3. Step 3: Cross multiply
    455,062.68x = 682,588.55 × 118,073.32
  4. Step 4: Simplify right side
    455,062.68x = 80,595,494,881.20
  5. Step 5: Solve for x
    x = 80,595,494,881.20/455,062.68
  6. Step 6: Final answer
    x = 177,108.56

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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.