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Finding the Fourth Proportional to 55,580.94, 83,065.41 and 40,619.16

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Solution

The fourth proportional to 55,580.94, 83,065.41 and 40,619.16 is: 60,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,580.94 : 83,065.41 = 40,619.16 : x
  2. Step 2: Convert to fraction form
    55,580.94/83,065.41 = 40,619.16/x
  3. Step 3: Cross multiply
    55,580.94x = 83,065.41 × 40,619.16
  4. Step 4: Simplify right side
    55,580.94x = 3,374,047,179.26
  5. Step 5: Solve for x
    x = 3,374,047,179.26/55,580.94
  6. Step 6: Final answer
    x = 60,705.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.