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Finding the Fourth Proportional to 93,169.84, 128,574.53 and 50,728.54

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Solution

The fourth proportional to 93,169.84, 128,574.53 and 50,728.54 is: 70,005.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,169.84 : 128,574.53 = 50,728.54 : x
  2. Step 2: Convert to fraction form
    93,169.84/128,574.53 = 50,728.54/x
  3. Step 3: Cross multiply
    93,169.84x = 128,574.53 × 50,728.54
  4. Step 4: Simplify right side
    93,169.84x = 6,522,398,188.09
  5. Step 5: Solve for x
    x = 6,522,398,188.09/93,169.84
  6. Step 6: Final answer
    x = 70,005.47

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1.5x scale

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.