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Finding the Fourth Proportional to 229,648.70, 316,925.99 and 127,675.83

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Solution

The fourth proportional to 229,648.70, 316,925.99 and 127,675.83 is: 176,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,648.70 : 316,925.99 = 127,675.83 : x
  2. Step 2: Convert to fraction form
    229,648.70/316,925.99 = 127,675.83/x
  3. Step 3: Cross multiply
    229,648.70x = 316,925.99 × 127,675.83
  4. Step 4: Simplify right side
    229,648.70x = 40,463,788,183.44
  5. Step 5: Solve for x
    x = 40,463,788,183.44/229,648.70
  6. Step 6: Final answer
    x = 176,198.64

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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.