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Finding the Fourth Proportional to 93,368.96, 128,850.92 and 50,929

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Solution

The fourth proportional to 93,368.96, 128,850.92 and 50,929 is: 70,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,368.96 : 128,850.92 = 50,929 : x
  2. Step 2: Convert to fraction form
    93,368.96/128,850.92 = 50,929/x
  3. Step 3: Cross multiply
    93,368.96x = 128,850.92 × 50,929
  4. Step 4: Simplify right side
    93,368.96x = 6,562,248,504.68
  5. Step 5: Solve for x
    x = 6,562,248,504.68/93,368.96
  6. Step 6: Final answer
    x = 70,282.98

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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.