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Finding the Fourth Proportional to 357,815.94, 536,723.46 and 91,576.59

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Solution

The fourth proportional to 357,815.94, 536,723.46 and 91,576.59 is: 137,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,815.94 : 536,723.46 = 91,576.59 : x
  2. Step 2: Convert to fraction form
    357,815.94/536,723.46 = 91,576.59/x
  3. Step 3: Cross multiply
    357,815.94x = 536,723.46 × 91,576.59
  4. Step 4: Simplify right side
    357,815.94x = 49,151,304,239.80
  5. Step 5: Solve for x
    x = 49,151,304,239.80/357,815.94
  6. Step 6: Final answer
    x = 137,364.77

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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.