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Finding the Fourth Proportional to 173,041.40, 259,343.40 and 154,233.20

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Solution

The fourth proportional to 173,041.40, 259,343.40 and 154,233.20 is: 231,154.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,041.40 : 259,343.40 = 154,233.20 : x
  2. Step 2: Convert to fraction form
    173,041.40/259,343.40 = 154,233.20/x
  3. Step 3: Cross multiply
    173,041.40x = 259,343.40 × 154,233.20
  4. Step 4: Simplify right side
    173,041.40x = 39,999,362,480.88
  5. Step 5: Solve for x
    x = 39,999,362,480.88/173,041.40
  6. Step 6: Final answer
    x = 231,154.87

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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.