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Finding the Fourth Proportional to 326,677.30, 490,018.44 and 90,032.96

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Solution

The fourth proportional to 326,677.30, 490,018.44 and 90,032.96 is: 135,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,677.30 : 490,018.44 = 90,032.96 : x
  2. Step 2: Convert to fraction form
    326,677.30/490,018.44 = 90,032.96/x
  3. Step 3: Cross multiply
    326,677.30x = 490,018.44 × 90,032.96
  4. Step 4: Simplify right side
    326,677.30x = 44,117,810,607.78
  5. Step 5: Solve for x
    x = 44,117,810,607.78/326,677.30
  6. Step 6: Final answer
    x = 135,050.13

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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.