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Finding the Fourth Proportional to 294,395.40, 441,650.70 and 125,915.40

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Solution

The fourth proportional to 294,395.40, 441,650.70 and 125,915.40 is: 188,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,395.40 : 441,650.70 = 125,915.40 : x
  2. Step 2: Convert to fraction form
    294,395.40/441,650.70 = 125,915.40/x
  3. Step 3: Cross multiply
    294,395.40x = 441,650.70 × 125,915.40
  4. Step 4: Simplify right side
    294,395.40x = 55,610,624,550.78
  5. Step 5: Solve for x
    x = 55,610,624,550.78/294,395.40
  6. Step 6: Final answer
    x = 188,897.74

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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.