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Finding the Fourth Proportional to 93,398.52, 128,890.32 and 50,958

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Solution

The fourth proportional to 93,398.52, 128,890.32 and 50,958 is: 70,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,398.52 : 128,890.32 = 50,958 : x
  2. Step 2: Convert to fraction form
    93,398.52/128,890.32 = 50,958/x
  3. Step 3: Cross multiply
    93,398.52x = 128,890.32 × 50,958
  4. Step 4: Simplify right side
    93,398.52x = 6,567,992,926.56
  5. Step 5: Solve for x
    x = 6,567,992,926.56/93,398.52
  6. Step 6: Final answer
    x = 70,322.24

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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.