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Finding the Fourth Proportional to 245,915.01, 339,380.06 and 137,026.53

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Solution

The fourth proportional to 245,915.01, 339,380.06 and 137,026.53 is: 189,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,915.01 : 339,380.06 = 137,026.53 : x
  2. Step 2: Convert to fraction form
    245,915.01/339,380.06 = 137,026.53/x
  3. Step 3: Cross multiply
    245,915.01x = 339,380.06 × 137,026.53
  4. Step 4: Simplify right side
    245,915.01x = 46,504,071,287.86
  5. Step 5: Solve for x
    x = 46,504,071,287.86/245,915.01
  6. Step 6: Final answer
    x = 189,106.27

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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.