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Finding the Fourth Proportional to 93,416.70, 128,915.37 and 50,975.94

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Solution

The fourth proportional to 93,416.70, 128,915.37 and 50,975.94 is: 70,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,416.70 : 128,915.37 = 50,975.94 : x
  2. Step 2: Convert to fraction form
    93,416.70/128,915.37 = 50,975.94/x
  3. Step 3: Cross multiply
    93,416.70x = 128,915.37 × 50,975.94
  4. Step 4: Simplify right side
    93,416.70x = 6,571,582,166.20
  5. Step 5: Solve for x
    x = 6,571,582,166.20/93,416.70
  6. Step 6: Final answer
    x = 70,346.97

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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.