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Finding the Fourth Proportional to 93,054.84, 128,449.08 and 55,329

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Solution

The fourth proportional to 93,054.84, 128,449.08 and 55,329 is: 76,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,054.84 : 128,449.08 = 55,329 : x
  2. Step 2: Convert to fraction form
    93,054.84/128,449.08 = 55,329/x
  3. Step 3: Cross multiply
    93,054.84x = 128,449.08 × 55,329
  4. Step 4: Simplify right side
    93,054.84x = 7,106,959,147.32
  5. Step 5: Solve for x
    x = 7,106,959,147.32/93,054.84
  6. Step 6: Final answer
    x = 76,373.88

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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.