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Finding the Fourth Proportional to 196,368.50, 270,988.56 and 106,944.50

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Solution

The fourth proportional to 196,368.50, 270,988.56 and 106,944.50 is: 147,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,368.50 : 270,988.56 = 106,944.50 : x
  2. Step 2: Convert to fraction form
    196,368.50/270,988.56 = 106,944.50/x
  3. Step 3: Cross multiply
    196,368.50x = 270,988.56 × 106,944.50
  4. Step 4: Simplify right side
    196,368.50x = 28,980,736,054.92
  5. Step 5: Solve for x
    x = 28,980,736,054.92/196,368.50
  6. Step 6: Final answer
    x = 147,583.43

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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.