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Finding the Fourth Proportional to 78,196.58, 107,912.96 and 44,203.04

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Solution

The fourth proportional to 78,196.58, 107,912.96 and 44,203.04 is: 61,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,196.58 : 107,912.96 = 44,203.04 : x
  2. Step 2: Convert to fraction form
    78,196.58/107,912.96 = 44,203.04/x
  3. Step 3: Cross multiply
    78,196.58x = 107,912.96 × 44,203.04
  4. Step 4: Simplify right side
    78,196.58x = 4,770,080,887.40
  5. Step 5: Solve for x
    x = 4,770,080,887.40/78,196.58
  6. Step 6: Final answer
    x = 61,001.14

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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.