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Finding the Fourth Proportional to 357,533.34, 536,299.70 and 91,293.90

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Solution

The fourth proportional to 357,533.34, 536,299.70 and 91,293.90 is: 136,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,533.34 : 536,299.70 = 91,293.90 : x
  2. Step 2: Convert to fraction form
    357,533.34/536,299.70 = 91,293.90/x
  3. Step 3: Cross multiply
    357,533.34x = 536,299.70 × 91,293.90
  4. Step 4: Simplify right side
    357,533.34x = 48,960,891,181.83
  5. Step 5: Solve for x
    x = 48,960,891,181.83/357,533.34
  6. Step 6: Final answer
    x = 136,940.77

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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.