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Finding the Fourth Proportional to 78,551.12, 108,392.28 and 44,548.70

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Solution

The fourth proportional to 78,551.12, 108,392.28 and 44,548.70 is: 61,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,551.12 : 108,392.28 = 44,548.70 : x
  2. Step 2: Convert to fraction form
    78,551.12/108,392.28 = 44,548.70/x
  3. Step 3: Cross multiply
    78,551.12x = 108,392.28 × 44,548.70
  4. Step 4: Simplify right side
    78,551.12x = 4,828,735,164.04
  5. Step 5: Solve for x
    x = 4,828,735,164.04/78,551.12
  6. Step 6: Final answer
    x = 61,472.52

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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.