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Finding the Fourth Proportional to 111,206.40, 153,464.67 and 60,905.40

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Solution

The fourth proportional to 111,206.40, 153,464.67 and 60,905.40 is: 84,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,206.40 : 153,464.67 = 60,905.40 : x
  2. Step 2: Convert to fraction form
    111,206.40/153,464.67 = 60,905.40/x
  3. Step 3: Cross multiply
    111,206.40x = 153,464.67 × 60,905.40
  4. Step 4: Simplify right side
    111,206.40x = 9,346,827,112.22
  5. Step 5: Solve for x
    x = 9,346,827,112.22/111,206.40
  6. Step 6: Final answer
    x = 84,049.36

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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.