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Finding the Fourth Proportional to 189,064.58, 260,914.66 and 104,187.10

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Solution

The fourth proportional to 189,064.58, 260,914.66 and 104,187.10 is: 143,781.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,064.58 : 260,914.66 = 104,187.10 : x
  2. Step 2: Convert to fraction form
    189,064.58/260,914.66 = 104,187.10/x
  3. Step 3: Cross multiply
    189,064.58x = 260,914.66 × 104,187.10
  4. Step 4: Simplify right side
    189,064.58x = 27,183,941,772.89
  5. Step 5: Solve for x
    x = 27,183,941,772.89/189,064.58
  6. Step 6: Final answer
    x = 143,781.25

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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.