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Finding the Fourth Proportional to 93,415.67, 128,912.41 and 50,973.47

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Solution

The fourth proportional to 93,415.67, 128,912.41 and 50,973.47 is: 70,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,415.67 : 128,912.41 = 50,973.47 : x
  2. Step 2: Convert to fraction form
    93,415.67/128,912.41 = 50,973.47/x
  3. Step 3: Cross multiply
    93,415.67x = 128,912.41 × 50,973.47
  4. Step 4: Simplify right side
    93,415.67x = 6,571,112,863.76
  5. Step 5: Solve for x
    x = 6,571,112,863.76/93,415.67
  6. Step 6: Final answer
    x = 70,342.73

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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.