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Finding the Fourth Proportional to 79,389.99, 109,560.60 and 43,582.32

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Solution

The fourth proportional to 79,389.99, 109,560.60 and 43,582.32 is: 60,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,389.99 : 109,560.60 = 43,582.32 : x
  2. Step 2: Convert to fraction form
    79,389.99/109,560.60 = 43,582.32/x
  3. Step 3: Cross multiply
    79,389.99x = 109,560.60 × 43,582.32
  4. Step 4: Simplify right side
    79,389.99x = 4,774,905,128.59
  5. Step 5: Solve for x
    x = 4,774,905,128.59/79,389.99
  6. Step 6: Final answer
    x = 60,144.93

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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.