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Finding the Fourth Proportional to 355,280.80, 532,046.40 and 168,073.60

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Solution

The fourth proportional to 355,280.80, 532,046.40 and 168,073.60 is: 251,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,280.80 : 532,046.40 = 168,073.60 : x
  2. Step 2: Convert to fraction form
    355,280.80/532,046.40 = 168,073.60/x
  3. Step 3: Cross multiply
    355,280.80x = 532,046.40 × 168,073.60
  4. Step 4: Simplify right side
    355,280.80x = 89,422,953,815.04
  5. Step 5: Solve for x
    x = 89,422,953,815.04/355,280.80
  6. Step 6: Final answer
    x = 251,696.56

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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.