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Finding the Fourth Proportional to 79,585.36, 109,827.24 and 43,774.48

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Solution

The fourth proportional to 79,585.36, 109,827.24 and 43,774.48 is: 60,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,585.36 : 109,827.24 = 43,774.48 : x
  2. Step 2: Convert to fraction form
    79,585.36/109,827.24 = 43,774.48/x
  3. Step 3: Cross multiply
    79,585.36x = 109,827.24 × 43,774.48
  4. Step 4: Simplify right side
    79,585.36x = 4,807,630,320.84
  5. Step 5: Solve for x
    x = 4,807,630,320.84/79,585.36
  6. Step 6: Final answer
    x = 60,408.48

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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.