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Finding the Fourth Proportional to 93,278.54, 128,724.83 and 52,994.52

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Solution

The fourth proportional to 93,278.54, 128,724.83 and 52,994.52 is: 73,132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.54 : 128,724.83 = 52,994.52 : x
  2. Step 2: Convert to fraction form
    93,278.54/128,724.83 = 52,994.52/x
  3. Step 3: Cross multiply
    93,278.54x = 128,724.83 × 52,994.52
  4. Step 4: Simplify right side
    93,278.54x = 6,821,710,511.69
  5. Step 5: Solve for x
    x = 6,821,710,511.69/93,278.54
  6. Step 6: Final answer
    x = 73,132.69

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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.