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Finding the Fourth Proportional to 93,321.05, 128,736.24 and 59,274.01

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Solution

The fourth proportional to 93,321.05, 128,736.24 and 59,274.01 is: 81,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,321.05 : 128,736.24 = 59,274.01 : x
  2. Step 2: Convert to fraction form
    93,321.05/128,736.24 = 59,274.01/x
  3. Step 3: Cross multiply
    93,321.05x = 128,736.24 × 59,274.01
  4. Step 4: Simplify right side
    93,321.05x = 7,630,712,533.44
  5. Step 5: Solve for x
    x = 7,630,712,533.44/93,321.05
  6. Step 6: Final answer
    x = 81,768.40

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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.