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Finding the Fourth Proportional to 364,813.28, 547,304.20 and 115,495.28

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Solution

The fourth proportional to 364,813.28, 547,304.20 and 115,495.28 is: 173,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,813.28 : 547,304.20 = 115,495.28 : x
  2. Step 2: Convert to fraction form
    364,813.28/547,304.20 = 115,495.28/x
  3. Step 3: Cross multiply
    364,813.28x = 547,304.20 × 115,495.28
  4. Step 4: Simplify right side
    364,813.28x = 63,211,051,824.18
  5. Step 5: Solve for x
    x = 63,211,051,824.18/364,813.28
  6. Step 6: Final answer
    x = 173,269.60

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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.