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Finding the Fourth Proportional to 306,729.20, 460,115.40 and 173,673.20

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Solution

The fourth proportional to 306,729.20, 460,115.40 and 173,673.20 is: 260,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,729.20 : 460,115.40 = 173,673.20 : x
  2. Step 2: Convert to fraction form
    306,729.20/460,115.40 = 173,673.20/x
  3. Step 3: Cross multiply
    306,729.20x = 460,115.40 × 173,673.20
  4. Step 4: Simplify right side
    306,729.20x = 79,909,713,887.28
  5. Step 5: Solve for x
    x = 79,909,713,887.28/306,729.20
  6. Step 6: Final answer
    x = 260,522.03

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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.