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Finding the Fourth Proportional to 127,293.40, 190,915.80 and 38,549.80

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Solution

The fourth proportional to 127,293.40, 190,915.80 and 38,549.80 is: 57,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,293.40 : 190,915.80 = 38,549.80 : x
  2. Step 2: Convert to fraction form
    127,293.40/190,915.80 = 38,549.80/x
  3. Step 3: Cross multiply
    127,293.40x = 190,915.80 × 38,549.80
  4. Step 4: Simplify right side
    127,293.40x = 7,359,765,906.84
  5. Step 5: Solve for x
    x = 7,359,765,906.84/127,293.40
  6. Step 6: Final answer
    x = 57,817.34

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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.