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Finding the Fourth Proportional to 172,993.33, 238,376.55 and 127,599.40

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Solution

The fourth proportional to 172,993.33, 238,376.55 and 127,599.40 is: 175,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,993.33 : 238,376.55 = 127,599.40 : x
  2. Step 2: Convert to fraction form
    172,993.33/238,376.55 = 127,599.40/x
  3. Step 3: Cross multiply
    172,993.33x = 238,376.55 × 127,599.40
  4. Step 4: Simplify right side
    172,993.33x = 30,416,704,754.07
  5. Step 5: Solve for x
    x = 30,416,704,754.07/172,993.33
  6. Step 6: Final answer
    x = 175,825.88

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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.