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Finding the Fourth Proportional to 248,012.88, 342,422.60 and 190,549.84

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Solution

The fourth proportional to 248,012.88, 342,422.60 and 190,549.84 is: 263,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,012.88 : 342,422.60 = 190,549.84 : x
  2. Step 2: Convert to fraction form
    248,012.88/342,422.60 = 190,549.84/x
  3. Step 3: Cross multiply
    248,012.88x = 342,422.60 × 190,549.84
  4. Step 4: Simplify right side
    248,012.88x = 65,248,571,642.38
  5. Step 5: Solve for x
    x = 65,248,571,642.38/248,012.88
  6. Step 6: Final answer
    x = 263,085.42

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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.