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Finding the Fourth Proportional to 93,564.36, 129,119.28 and 51,123

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Solution

The fourth proportional to 93,564.36, 129,119.28 and 51,123 is: 70,549.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,564.36 : 129,119.28 = 51,123 : x
  2. Step 2: Convert to fraction form
    93,564.36/129,119.28 = 51,123/x
  3. Step 3: Cross multiply
    93,564.36x = 129,119.28 × 51,123
  4. Step 4: Simplify right side
    93,564.36x = 6,600,964,951.44
  5. Step 5: Solve for x
    x = 6,600,964,951.44/93,564.36
  6. Step 6: Final answer
    x = 70,549.99

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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.