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Finding the Fourth Proportional to 191,040.29, 286,485.36 and 64,645.73

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Solution

The fourth proportional to 191,040.29, 286,485.36 and 64,645.73 is: 96,943.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,040.29 : 286,485.36 = 64,645.73 : x
  2. Step 2: Convert to fraction form
    191,040.29/286,485.36 = 64,645.73/x
  3. Step 3: Cross multiply
    191,040.29x = 286,485.36 × 64,645.73
  4. Step 4: Simplify right side
    191,040.29x = 18,520,053,799.09
  5. Step 5: Solve for x
    x = 18,520,053,799.09/191,040.29
  6. Step 6: Final answer
    x = 96,943.19

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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.