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Finding the Fourth Proportional to 357,436.55, 536,376.42 and 207,747.34

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Solution

The fourth proportional to 357,436.55, 536,376.42 and 207,747.34 is: 311,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,436.55 : 536,376.42 = 207,747.34 : x
  2. Step 2: Convert to fraction form
    357,436.55/536,376.42 = 207,747.34/x
  3. Step 3: Cross multiply
    357,436.55x = 536,376.42 × 207,747.34
  4. Step 4: Simplify right side
    357,436.55x = 111,430,773,152.78
  5. Step 5: Solve for x
    x = 111,430,773,152.78/357,436.55
  6. Step 6: Final answer
    x = 311,749.80

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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.