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Finding the Fourth Proportional to 455,599.48, 683,280.96 and 135,676.48

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Solution

The fourth proportional to 455,599.48, 683,280.96 and 135,676.48 is: 203,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,599.48 : 683,280.96 = 135,676.48 : x
  2. Step 2: Convert to fraction form
    455,599.48/683,280.96 = 135,676.48/x
  3. Step 3: Cross multiply
    455,599.48x = 683,280.96 × 135,676.48
  4. Step 4: Simplify right side
    455,599.48x = 92,705,155,503.82
  5. Step 5: Solve for x
    x = 92,705,155,503.82/455,599.48
  6. Step 6: Final answer
    x = 203,479.50

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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.