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Finding the Fourth Proportional to 355,607.60, 534,025.80 and 189,719.60

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Solution

The fourth proportional to 355,607.60, 534,025.80 and 189,719.60 is: 284,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,607.60 : 534,025.80 = 189,719.60 : x
  2. Step 2: Convert to fraction form
    355,607.60/534,025.80 = 189,719.60/x
  3. Step 3: Cross multiply
    355,607.60x = 534,025.80 × 189,719.60
  4. Step 4: Simplify right side
    355,607.60x = 101,315,161,165.68
  5. Step 5: Solve for x
    x = 101,315,161,165.68/355,607.60
  6. Step 6: Final answer
    x = 284,907.19

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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.