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Finding the Fourth Proportional to 110,703.80, 166,055.70 and 104,580.20

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Solution

The fourth proportional to 110,703.80, 166,055.70 and 104,580.20 is: 156,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,703.80 : 166,055.70 = 104,580.20 : x
  2. Step 2: Convert to fraction form
    110,703.80/166,055.70 = 104,580.20/x
  3. Step 3: Cross multiply
    110,703.80x = 166,055.70 × 104,580.20
  4. Step 4: Simplify right side
    110,703.80x = 17,366,138,317.14
  5. Step 5: Solve for x
    x = 17,366,138,317.14/110,703.80
  6. Step 6: Final answer
    x = 156,870.30

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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.