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Finding the Fourth Proportional to 196,376.40, 270,928.80 and 124,772.40

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Solution

The fourth proportional to 196,376.40, 270,928.80 and 124,772.40 is: 172,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,376.40 : 270,928.80 = 124,772.40 : x
  2. Step 2: Convert to fraction form
    196,376.40/270,928.80 = 124,772.40/x
  3. Step 3: Cross multiply
    196,376.40x = 270,928.80 × 124,772.40
  4. Step 4: Simplify right side
    196,376.40x = 33,804,436,605.12
  5. Step 5: Solve for x
    x = 33,804,436,605.12/196,376.40
  6. Step 6: Final answer
    x = 172,141.03

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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.