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Finding the Fourth Proportional to 93,169.53, 128,574 and 50,728.14

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Solution

The fourth proportional to 93,169.53, 128,574 and 50,728.14 is: 70,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,169.53 : 128,574 = 50,728.14 : x
  2. Step 2: Convert to fraction form
    93,169.53/128,574 = 50,728.14/x
  3. Step 3: Cross multiply
    93,169.53x = 128,574 × 50,728.14
  4. Step 4: Simplify right side
    93,169.53x = 6,522,319,872.36
  5. Step 5: Solve for x
    x = 6,522,319,872.36/93,169.53
  6. Step 6: Final answer
    x = 70,004.86

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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.