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Finding the Fourth Proportional to 127,274.40, 190,911.60 and 124,358.40

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Solution

The fourth proportional to 127,274.40, 190,911.60 and 124,358.40 is: 186,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,274.40 : 190,911.60 = 124,358.40 : x
  2. Step 2: Convert to fraction form
    127,274.40/190,911.60 = 124,358.40/x
  3. Step 3: Cross multiply
    127,274.40x = 190,911.60 × 124,358.40
  4. Step 4: Simplify right side
    127,274.40x = 23,741,461,117.44
  5. Step 5: Solve for x
    x = 23,741,461,117.44/127,274.40
  6. Step 6: Final answer
    x = 186,537.60

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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.