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Finding the Fourth Proportional to 216,359.10, 298,591.72 and 124,506.54

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Solution

The fourth proportional to 216,359.10, 298,591.72 and 124,506.54 is: 171,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,359.10 : 298,591.72 = 124,506.54 : x
  2. Step 2: Convert to fraction form
    216,359.10/298,591.72 = 124,506.54/x
  3. Step 3: Cross multiply
    216,359.10x = 298,591.72 × 124,506.54
  4. Step 4: Simplify right side
    216,359.10x = 37,176,621,929.85
  5. Step 5: Solve for x
    x = 37,176,621,929.85/216,359.10
  6. Step 6: Final answer
    x = 171,828.33

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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.