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Finding the Fourth Proportional to 111,094.95, 166,377.48 and 70,987.89

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Solution

The fourth proportional to 111,094.95, 166,377.48 and 70,987.89 is: 106,312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,094.95 : 166,377.48 = 70,987.89 : x
  2. Step 2: Convert to fraction form
    111,094.95/166,377.48 = 70,987.89/x
  3. Step 3: Cross multiply
    111,094.95x = 166,377.48 × 70,987.89
  4. Step 4: Simplify right side
    111,094.95x = 11,810,786,248.72
  5. Step 5: Solve for x
    x = 11,810,786,248.72/111,094.95
  6. Step 6: Final answer
    x = 106,312.54

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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.