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Finding the Fourth Proportional to 173,009.20, 259,421.30 and 88,734.96

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Solution

The fourth proportional to 173,009.20, 259,421.30 and 88,734.96 is: 133,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,009.20 : 259,421.30 = 88,734.96 : x
  2. Step 2: Convert to fraction form
    173,009.20/259,421.30 = 88,734.96/x
  3. Step 3: Cross multiply
    173,009.20x = 259,421.30 × 88,734.96
  4. Step 4: Simplify right side
    173,009.20x = 23,019,738,678.65
  5. Step 5: Solve for x
    x = 23,019,738,678.65/173,009.20
  6. Step 6: Final answer
    x = 133,055.00

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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.