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Finding the Fourth Proportional to 509,737.35, 764,442.60 and 168,104.08

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Solution

The fourth proportional to 509,737.35, 764,442.60 and 168,104.08 is: 252,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,737.35 : 764,442.60 = 168,104.08 : x
  2. Step 2: Convert to fraction form
    509,737.35/764,442.60 = 168,104.08/x
  3. Step 3: Cross multiply
    509,737.35x = 764,442.60 × 168,104.08
  4. Step 4: Simplify right side
    509,737.35x = 128,505,919,985.81
  5. Step 5: Solve for x
    x = 128,505,919,985.81/509,737.35
  6. Step 6: Final answer
    x = 252,102.22

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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.