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Finding the Fourth Proportional to 173,297.80, 259,509.30 and 113,811.40

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Solution

The fourth proportional to 173,297.80, 259,509.30 and 113,811.40 is: 170,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,297.80 : 259,509.30 = 113,811.40 : x
  2. Step 2: Convert to fraction form
    173,297.80/259,509.30 = 113,811.40/x
  3. Step 3: Cross multiply
    173,297.80x = 259,509.30 × 113,811.40
  4. Step 4: Simplify right side
    173,297.80x = 29,535,116,746.02
  5. Step 5: Solve for x
    x = 29,535,116,746.02/173,297.80
  6. Step 6: Final answer
    x = 170,429.84

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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.