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Finding the Fourth Proportional to 111,071.33, 153,119.01 and 79,184.87

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Solution

The fourth proportional to 111,071.33, 153,119.01 and 79,184.87 is: 109,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,071.33 : 153,119.01 = 79,184.87 : x
  2. Step 2: Convert to fraction form
    111,071.33/153,119.01 = 79,184.87/x
  3. Step 3: Cross multiply
    111,071.33x = 153,119.01 × 79,184.87
  4. Step 4: Simplify right side
    111,071.33x = 12,124,708,518.58
  5. Step 5: Solve for x
    x = 12,124,708,518.58/111,071.33
  6. Step 6: Final answer
    x = 109,161.46

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