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Finding the Fourth Proportional to 78,544.28, 108,382.90 and 44,541.90

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Solution

The fourth proportional to 78,544.28, 108,382.90 and 44,541.90 is: 61,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.28 : 108,382.90 = 44,541.90 : x
  2. Step 2: Convert to fraction form
    78,544.28/108,382.90 = 44,541.90/x
  3. Step 3: Cross multiply
    78,544.28x = 108,382.90 × 44,541.90
  4. Step 4: Simplify right side
    78,544.28x = 4,827,580,293.51
  5. Step 5: Solve for x
    x = 4,827,580,293.51/78,544.28
  6. Step 6: Final answer
    x = 61,463.17

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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.