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Finding the Fourth Proportional to 93,402.08, 128,895.60 and 50,960.96

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Solution

The fourth proportional to 93,402.08, 128,895.60 and 50,960.96 is: 70,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,402.08 : 128,895.60 = 50,960.96 : x
  2. Step 2: Convert to fraction form
    93,402.08/128,895.60 = 50,960.96/x
  3. Step 3: Cross multiply
    93,402.08x = 128,895.60 × 50,960.96
  4. Step 4: Simplify right side
    93,402.08x = 6,568,643,515.78
  5. Step 5: Solve for x
    x = 6,568,643,515.78/93,402.08
  6. Step 6: Final answer
    x = 70,326.52

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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.