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Finding the Fourth Proportional to 294,211.40, 441,374.70 and 125,731.40

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Solution

The fourth proportional to 294,211.40, 441,374.70 and 125,731.40 is: 188,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,211.40 : 441,374.70 = 125,731.40 : x
  2. Step 2: Convert to fraction form
    294,211.40/441,374.70 = 125,731.40/x
  3. Step 3: Cross multiply
    294,211.40x = 441,374.70 × 125,731.40
  4. Step 4: Simplify right side
    294,211.40x = 55,494,658,955.58
  5. Step 5: Solve for x
    x = 55,494,658,955.58/294,211.40
  6. Step 6: Final answer
    x = 188,621.72

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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.