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Finding the Fourth Proportional to 189,054, 260,899.99 and 104,176.53

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Solution

The fourth proportional to 189,054, 260,899.99 and 104,176.53 is: 143,766.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,054 : 260,899.99 = 104,176.53 : x
  2. Step 2: Convert to fraction form
    189,054/260,899.99 = 104,176.53/x
  3. Step 3: Cross multiply
    189,054x = 260,899.99 × 104,176.53
  4. Step 4: Simplify right side
    189,054x = 27,179,655,374.79
  5. Step 5: Solve for x
    x = 27,179,655,374.79/189,054
  6. Step 6: Final answer
    x = 143,766.62

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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.