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Finding the Fourth Proportional to 193,886.10, 290,137.95 and 134,442.90

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Solution

The fourth proportional to 193,886.10, 290,137.95 and 134,442.90 is: 201,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,886.10 : 290,137.95 = 134,442.90 : x
  2. Step 2: Convert to fraction form
    193,886.10/290,137.95 = 134,442.90/x
  3. Step 3: Cross multiply
    193,886.10x = 290,137.95 × 134,442.90
  4. Step 4: Simplify right side
    193,886.10x = 39,006,987,398.06
  5. Step 5: Solve for x
    x = 39,006,987,398.06/193,886.10
  6. Step 6: Final answer
    x = 201,185.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.