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Finding the Fourth Proportional to 455,959.59, 683,953.29 and 156,435.96

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Solution

The fourth proportional to 455,959.59, 683,953.29 and 156,435.96 is: 234,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,959.59 : 683,953.29 = 156,435.96 : x
  2. Step 2: Convert to fraction form
    455,959.59/683,953.29 = 156,435.96/x
  3. Step 3: Cross multiply
    455,959.59x = 683,953.29 × 156,435.96
  4. Step 4: Simplify right side
    455,959.59x = 106,994,889,516.31
  5. Step 5: Solve for x
    x = 106,994,889,516.31/455,959.59
  6. Step 6: Final answer
    x = 234,658.71

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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.