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Finding the Fourth Proportional to 357,790.76, 536,704.74 and 91,553.72

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Solution

The fourth proportional to 357,790.76, 536,704.74 and 91,553.72 is: 137,335.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,790.76 : 536,704.74 = 91,553.72 : x
  2. Step 2: Convert to fraction form
    357,790.76/536,704.74 = 91,553.72/x
  3. Step 3: Cross multiply
    357,790.76x = 536,704.74 × 91,553.72
  4. Step 4: Simplify right side
    357,790.76x = 49,137,315,488.63
  5. Step 5: Solve for x
    x = 49,137,315,488.63/357,790.76
  6. Step 6: Final answer
    x = 137,335.34

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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.