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Finding the Fourth Proportional to 357,911.59, 536,855.08 and 91,674.41

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Solution

The fourth proportional to 357,911.59, 536,855.08 and 91,674.41 is: 137,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,911.59 : 536,855.08 = 91,674.41 : x
  2. Step 2: Convert to fraction form
    357,911.59/536,855.08 = 91,674.41/x
  3. Step 3: Cross multiply
    357,911.59x = 536,855.08 × 91,674.41
  4. Step 4: Simplify right side
    357,911.59x = 49,215,872,714.50
  5. Step 5: Solve for x
    x = 49,215,872,714.50/357,911.59
  6. Step 6: Final answer
    x = 137,508.46

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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.