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Finding the Fourth Proportional to 199,063.56, 274,707.72 and 109,639.56

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Solution

The fourth proportional to 199,063.56, 274,707.72 and 109,639.56 is: 151,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,063.56 : 274,707.72 = 109,639.56 : x
  2. Step 2: Convert to fraction form
    199,063.56/274,707.72 = 109,639.56/x
  3. Step 3: Cross multiply
    199,063.56x = 274,707.72 × 109,639.56
  4. Step 4: Simplify right side
    199,063.56x = 30,118,833,549.40
  5. Step 5: Solve for x
    x = 30,118,833,549.40/199,063.56
  6. Step 6: Final answer
    x = 151,302.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.