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Finding the Fourth Proportional to 93,368.58, 128,837.43 and 53,082.42

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Solution

The fourth proportional to 93,368.58, 128,837.43 and 53,082.42 is: 73,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,368.58 : 128,837.43 = 53,082.42 : x
  2. Step 2: Convert to fraction form
    93,368.58/128,837.43 = 53,082.42/x
  3. Step 3: Cross multiply
    93,368.58x = 128,837.43 × 53,082.42
  4. Step 4: Simplify right side
    93,368.58x = 6,839,002,570.98
  5. Step 5: Solve for x
    x = 6,839,002,570.98/93,368.58
  6. Step 6: Final answer
    x = 73,247.37

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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.