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Finding the Fourth Proportional to 93,273.84, 128,714.64 and 50,831.52

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Solution

The fourth proportional to 93,273.84, 128,714.64 and 50,831.52 is: 70,145.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,273.84 : 128,714.64 = 50,831.52 : x
  2. Step 2: Convert to fraction form
    93,273.84/128,714.64 = 50,831.52/x
  3. Step 3: Cross multiply
    93,273.84x = 128,714.64 × 50,831.52
  4. Step 4: Simplify right side
    93,273.84x = 6,542,760,797.45
  5. Step 5: Solve for x
    x = 6,542,760,797.45/93,273.84
  6. Step 6: Final answer
    x = 70,145.72

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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.