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Finding the Fourth Proportional to 178,101.66, 245,808.06 and 101,620.64

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Solution

The fourth proportional to 178,101.66, 245,808.06 and 101,620.64 is: 140,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,101.66 : 245,808.06 = 101,620.64 : x
  2. Step 2: Convert to fraction form
    178,101.66/245,808.06 = 101,620.64/x
  3. Step 3: Cross multiply
    178,101.66x = 245,808.06 × 101,620.64
  4. Step 4: Simplify right side
    178,101.66x = 24,979,172,374.36
  5. Step 5: Solve for x
    x = 24,979,172,374.36/178,101.66
  6. Step 6: Final answer
    x = 140,252.33

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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.