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Finding the Fourth Proportional to 93,278.03, 128,724.11 and 52,994

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Solution

The fourth proportional to 93,278.03, 128,724.11 and 52,994 is: 73,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.03 : 128,724.11 = 52,994 : x
  2. Step 2: Convert to fraction form
    93,278.03/128,724.11 = 52,994/x
  3. Step 3: Cross multiply
    93,278.03x = 128,724.11 × 52,994
  4. Step 4: Simplify right side
    93,278.03x = 6,821,605,220.37
  5. Step 5: Solve for x
    x = 6,821,605,220.37/93,278.03
  6. Step 6: Final answer
    x = 73,131.96

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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.