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Finding the Fourth Proportional to 93,310.08, 128,729.14 and 55,054.44

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Solution

The fourth proportional to 93,310.08, 128,729.14 and 55,054.44 is: 75,952.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,310.08 : 128,729.14 = 55,054.44 : x
  2. Step 2: Convert to fraction form
    93,310.08/128,729.14 = 55,054.44/x
  3. Step 3: Cross multiply
    93,310.08x = 128,729.14 × 55,054.44
  4. Step 4: Simplify right side
    93,310.08x = 7,087,110,714.38
  5. Step 5: Solve for x
    x = 7,087,110,714.38/93,310.08
  6. Step 6: Final answer
    x = 75,952.25

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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.