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Finding the Fourth Proportional to 79,343.60, 109,495.95 and 43,533.50

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Solution

The fourth proportional to 79,343.60, 109,495.95 and 43,533.50 is: 60,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,343.60 : 109,495.95 = 43,533.50 : x
  2. Step 2: Convert to fraction form
    79,343.60/109,495.95 = 43,533.50/x
  3. Step 3: Cross multiply
    79,343.60x = 109,495.95 × 43,533.50
  4. Step 4: Simplify right side
    79,343.60x = 4,766,741,391.85
  5. Step 5: Solve for x
    x = 4,766,741,391.85/79,343.60
  6. Step 6: Final answer
    x = 60,077.20

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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.