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Finding the Fourth Proportional to 93,103.75, 128,482.09 and 50,661.55

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Solution

The fourth proportional to 93,103.75, 128,482.09 and 50,661.55 is: 69,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,103.75 : 128,482.09 = 50,661.55 : x
  2. Step 2: Convert to fraction form
    93,103.75/128,482.09 = 50,661.55/x
  3. Step 3: Cross multiply
    93,103.75x = 128,482.09 × 50,661.55
  4. Step 4: Simplify right side
    93,103.75x = 6,509,101,826.64
  5. Step 5: Solve for x
    x = 6,509,101,826.64/93,103.75
  6. Step 6: Final answer
    x = 69,912.35

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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.