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Finding the Fourth Proportional to 354,697.40, 531,928.08 and 114,754.32

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Solution

The fourth proportional to 354,697.40, 531,928.08 and 114,754.32 is: 172,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,697.40 : 531,928.08 = 114,754.32 : x
  2. Step 2: Convert to fraction form
    354,697.40/531,928.08 = 114,754.32/x
  3. Step 3: Cross multiply
    354,697.40x = 531,928.08 × 114,754.32
  4. Step 4: Simplify right side
    354,697.40x = 61,041,045,109.31
  5. Step 5: Solve for x
    x = 61,041,045,109.31/354,697.40
  6. Step 6: Final answer
    x = 172,093.30

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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.