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Finding the Fourth Proportional to 93,353.94, 128,830.05 and 50,912.82

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Solution

The fourth proportional to 93,353.94, 128,830.05 and 50,912.82 is: 70,260.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,353.94 : 128,830.05 = 50,912.82 : x
  2. Step 2: Convert to fraction form
    93,353.94/128,830.05 = 50,912.82/x
  3. Step 3: Cross multiply
    93,353.94x = 128,830.05 × 50,912.82
  4. Step 4: Simplify right side
    93,353.94x = 6,559,101,146.24
  5. Step 5: Solve for x
    x = 6,559,101,146.24/93,353.94
  6. Step 6: Final answer
    x = 70,260.57

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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.