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Finding the Fourth Proportional to 81,054.16, 111,852.41 and 45,243.41

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Solution

The fourth proportional to 81,054.16, 111,852.41 and 45,243.41 is: 62,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,054.16 : 111,852.41 = 45,243.41 : x
  2. Step 2: Convert to fraction form
    81,054.16/111,852.41 = 45,243.41/x
  3. Step 3: Cross multiply
    81,054.16x = 111,852.41 × 45,243.41
  4. Step 4: Simplify right side
    81,054.16x = 5,060,583,998.96
  5. Step 5: Solve for x
    x = 5,060,583,998.96/81,054.16
  6. Step 6: Final answer
    x = 62,434.60

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1.5x scale

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.