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Finding the Fourth Proportional to 357,510.74, 536,265.75 and 91,271.30

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Solution

The fourth proportional to 357,510.74, 536,265.75 and 91,271.30 is: 136,906.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,510.74 : 536,265.75 = 91,271.30 : x
  2. Step 2: Convert to fraction form
    357,510.74/536,265.75 = 91,271.30/x
  3. Step 3: Cross multiply
    357,510.74x = 536,265.75 × 91,271.30
  4. Step 4: Simplify right side
    357,510.74x = 48,945,672,147.98
  5. Step 5: Solve for x
    x = 48,945,672,147.98/357,510.74
  6. Step 6: Final answer
    x = 136,906.86

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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.