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Finding the Fourth Proportional to 357,675.87, 536,511.68 and 91,435.97

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Solution

The fourth proportional to 357,675.87, 536,511.68 and 91,435.97 is: 137,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,675.87 : 536,511.68 = 91,435.97 : x
  2. Step 2: Convert to fraction form
    357,675.87/536,511.68 = 91,435.97/x
  3. Step 3: Cross multiply
    357,675.87x = 536,511.68 × 91,435.97
  4. Step 4: Simplify right side
    357,675.87x = 49,056,462,737.39
  5. Step 5: Solve for x
    x = 49,056,462,737.39/357,675.87
  6. Step 6: Final answer
    x = 137,153.40

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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.