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Finding the Fourth Proportional to 93,173.30, 128,577.87 and 50,731.83

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Solution

The fourth proportional to 93,173.30, 128,577.87 and 50,731.83 is: 70,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,173.30 : 128,577.87 = 50,731.83 : x
  2. Step 2: Convert to fraction form
    93,173.30/128,577.87 = 50,731.83/x
  3. Step 3: Cross multiply
    93,173.30x = 128,577.87 × 50,731.83
  4. Step 4: Simplify right side
    93,173.30x = 6,522,990,642.60
  5. Step 5: Solve for x
    x = 6,522,990,642.60/93,173.30
  6. Step 6: Final answer
    x = 70,009.23

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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.