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Finding the Fourth Proportional to 357,669.33, 536,501.86 and 91,429.41

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Solution

The fourth proportional to 357,669.33, 536,501.86 and 91,429.41 is: 137,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,669.33 : 536,501.86 = 91,429.41 : x
  2. Step 2: Convert to fraction form
    357,669.33/536,501.86 = 91,429.41/x
  3. Step 3: Cross multiply
    357,669.33x = 536,501.86 × 91,429.41
  4. Step 4: Simplify right side
    357,669.33x = 49,052,048,523.70
  5. Step 5: Solve for x
    x = 49,052,048,523.70/357,669.33
  6. Step 6: Final answer
    x = 137,143.57

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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.