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Finding the Fourth Proportional to 78,071.64, 107,738.88 and 44,537.64

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Solution

The fourth proportional to 78,071.64, 107,738.88 and 44,537.64 is: 61,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,071.64 : 107,738.88 = 44,537.64 : x
  2. Step 2: Convert to fraction form
    78,071.64/107,738.88 = 44,537.64/x
  3. Step 3: Cross multiply
    78,071.64x = 107,738.88 × 44,537.64
  4. Step 4: Simplify right side
    78,071.64x = 4,798,435,451.44
  5. Step 5: Solve for x
    x = 4,798,435,451.44/78,071.64
  6. Step 6: Final answer
    x = 61,461.95

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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.