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Finding the Fourth Proportional to 173,098.98, 258,121.26 and 166,931.64

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Solution

The fourth proportional to 173,098.98, 258,121.26 and 166,931.64 is: 248,924.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,098.98 : 258,121.26 = 166,931.64 : x
  2. Step 2: Convert to fraction form
    173,098.98/258,121.26 = 166,931.64/x
  3. Step 3: Cross multiply
    173,098.98x = 258,121.26 × 166,931.64
  4. Step 4: Simplify right side
    173,098.98x = 43,088,605,250.67
  5. Step 5: Solve for x
    x = 43,088,605,250.67/173,098.98
  6. Step 6: Final answer
    x = 248,924.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.