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Finding the Fourth Proportional to 78,055.97, 107,708.95 and 44,062.30

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Solution

The fourth proportional to 78,055.97, 107,708.95 and 44,062.30 is: 60,801.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,055.97 : 107,708.95 = 44,062.30 : x
  2. Step 2: Convert to fraction form
    78,055.97/107,708.95 = 44,062.30/x
  3. Step 3: Cross multiply
    78,055.97x = 107,708.95 × 44,062.30
  4. Step 4: Simplify right side
    78,055.97x = 4,745,903,940.60
  5. Step 5: Solve for x
    x = 4,745,903,940.60/78,055.97
  6. Step 6: Final answer
    x = 60,801.30

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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.