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Finding the Fourth Proportional to 173,130.40, 259,695.60 and 73,257.40

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Solution

The fourth proportional to 173,130.40, 259,695.60 and 73,257.40 is: 109,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,130.40 : 259,695.60 = 73,257.40 : x
  2. Step 2: Convert to fraction form
    173,130.40/259,695.60 = 73,257.40/x
  3. Step 3: Cross multiply
    173,130.40x = 259,695.60 × 73,257.40
  4. Step 4: Simplify right side
    173,130.40x = 19,024,624,447.44
  5. Step 5: Solve for x
    x = 19,024,624,447.44/173,130.40
  6. Step 6: Final answer
    x = 109,886.10

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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.