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Finding the Fourth Proportional to 93,892, 129,570.96 and 51,452.20

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Solution

The fourth proportional to 93,892, 129,570.96 and 51,452.20 is: 71,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,892 : 129,570.96 = 51,452.20 : x
  2. Step 2: Convert to fraction form
    93,892/129,570.96 = 51,452.20/x
  3. Step 3: Cross multiply
    93,892x = 129,570.96 × 51,452.20
  4. Step 4: Simplify right side
    93,892x = 6,666,710,948.11
  5. Step 5: Solve for x
    x = 6,666,710,948.11/93,892
  6. Step 6: Final answer
    x = 71,004.04

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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.