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Finding the Fourth Proportional to 93,014.40, 128,358.36 and 50,574

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Solution

The fourth proportional to 93,014.40, 128,358.36 and 50,574 is: 69,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,014.40 : 128,358.36 = 50,574 : x
  2. Step 2: Convert to fraction form
    93,014.40/128,358.36 = 50,574/x
  3. Step 3: Cross multiply
    93,014.40x = 128,358.36 × 50,574
  4. Step 4: Simplify right side
    93,014.40x = 6,491,595,698.64
  5. Step 5: Solve for x
    x = 6,491,595,698.64/93,014.40
  6. Step 6: Final answer
    x = 69,791.30

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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.