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Finding the Fourth Proportional to 363,715.60, 545,573.40 and 164,261.20

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Solution

The fourth proportional to 363,715.60, 545,573.40 and 164,261.20 is: 246,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,715.60 : 545,573.40 = 164,261.20 : x
  2. Step 2: Convert to fraction form
    363,715.60/545,573.40 = 164,261.20/x
  3. Step 3: Cross multiply
    363,715.60x = 545,573.40 × 164,261.20
  4. Step 4: Simplify right side
    363,715.60x = 89,616,541,372.08
  5. Step 5: Solve for x
    x = 89,616,541,372.08/363,715.60
  6. Step 6: Final answer
    x = 246,391.80

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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.