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Finding the Fourth Proportional to 110,993.58, 153,171.44 and 70,698.72

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Solution

The fourth proportional to 110,993.58, 153,171.44 and 70,698.72 is: 97,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,993.58 : 153,171.44 = 70,698.72 : x
  2. Step 2: Convert to fraction form
    110,993.58/153,171.44 = 70,698.72/x
  3. Step 3: Cross multiply
    110,993.58x = 153,171.44 × 70,698.72
  4. Step 4: Simplify right side
    110,993.58x = 10,829,024,748.56
  5. Step 5: Solve for x
    x = 10,829,024,748.56/110,993.58
  6. Step 6: Final answer
    x = 97,564.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.