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Finding the Fourth Proportional to 170,027.40, 255,041.10 and 91,295.40

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Solution

The fourth proportional to 170,027.40, 255,041.10 and 91,295.40 is: 136,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,027.40 : 255,041.10 = 91,295.40 : x
  2. Step 2: Convert to fraction form
    170,027.40/255,041.10 = 91,295.40/x
  3. Step 3: Cross multiply
    170,027.40x = 255,041.10 × 91,295.40
  4. Step 4: Simplify right side
    170,027.40x = 23,284,079,240.94
  5. Step 5: Solve for x
    x = 23,284,079,240.94/170,027.40
  6. Step 6: Final answer
    x = 136,943.10

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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.