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Finding the Fourth Proportional to 93,672.99, 129,267.90 and 51,231.83

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Solution

The fourth proportional to 93,672.99, 129,267.90 and 51,231.83 is: 70,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,672.99 : 129,267.90 = 51,231.83 : x
  2. Step 2: Convert to fraction form
    93,672.99/129,267.90 = 51,231.83/x
  3. Step 3: Cross multiply
    93,672.99x = 129,267.90 × 51,231.83
  4. Step 4: Simplify right side
    93,672.99x = 6,622,630,430.92
  5. Step 5: Solve for x
    x = 6,622,630,430.92/93,672.99
  6. Step 6: Final answer
    x = 70,699.47

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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.