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Finding the Fourth Proportional to 93,198, 128,622.96 and 52,922.64

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Solution

The fourth proportional to 93,198, 128,622.96 and 52,922.64 is: 73,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,198 : 128,622.96 = 52,922.64 : x
  2. Step 2: Convert to fraction form
    93,198/128,622.96 = 52,922.64/x
  3. Step 3: Cross multiply
    93,198x = 128,622.96 × 52,922.64
  4. Step 4: Simplify right side
    93,198x = 6,807,066,607.81
  5. Step 5: Solve for x
    x = 6,807,066,607.81/93,198
  6. Step 6: Final answer
    x = 73,038.76

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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.