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Finding the Fourth Proportional to 93,203.40, 128,619.18 and 50,763

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Solution

The fourth proportional to 93,203.40, 128,619.18 and 50,763 is: 70,052.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,203.40 : 128,619.18 = 50,763 : x
  2. Step 2: Convert to fraction form
    93,203.40/128,619.18 = 50,763/x
  3. Step 3: Cross multiply
    93,203.40x = 128,619.18 × 50,763
  4. Step 4: Simplify right side
    93,203.40x = 6,529,095,434.34
  5. Step 5: Solve for x
    x = 6,529,095,434.34/93,203.40
  6. Step 6: Final answer
    x = 70,052.12

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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.