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Finding the Fourth Proportional to 79,554.60, 109,785.60 and 43,746.84

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Solution

The fourth proportional to 79,554.60, 109,785.60 and 43,746.84 is: 60,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,554.60 : 109,785.60 = 43,746.84 : x
  2. Step 2: Convert to fraction form
    79,554.60/109,785.60 = 43,746.84/x
  3. Step 3: Cross multiply
    79,554.60x = 109,785.60 × 43,746.84
  4. Step 4: Simplify right side
    79,554.60x = 4,802,773,077.50
  5. Step 5: Solve for x
    x = 4,802,773,077.50/79,554.60
  6. Step 6: Final answer
    x = 60,370.78

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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.