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Finding the Fourth Proportional to 191,595.81, 264,410.39 and 106,712.88

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Solution

The fourth proportional to 191,595.81, 264,410.39 and 106,712.88 is: 147,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,595.81 : 264,410.39 = 106,712.88 : x
  2. Step 2: Convert to fraction form
    191,595.81/264,410.39 = 106,712.88/x
  3. Step 3: Cross multiply
    191,595.81x = 264,410.39 × 106,712.88
  4. Step 4: Simplify right side
    191,595.81x = 28,215,993,494.07
  5. Step 5: Solve for x
    x = 28,215,993,494.07/191,595.81
  6. Step 6: Final answer
    x = 147,268.32

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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.