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Finding the Fourth Proportional to 316,842.60, 475,226.91 and 127,295.31

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Solution

The fourth proportional to 316,842.60, 475,226.91 and 127,295.31 is: 190,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,842.60 : 475,226.91 = 127,295.31 : x
  2. Step 2: Convert to fraction form
    316,842.60/475,226.91 = 127,295.31/x
  3. Step 3: Cross multiply
    316,842.60x = 475,226.91 × 127,295.31
  4. Step 4: Simplify right side
    316,842.60x = 60,494,156,828.79
  5. Step 5: Solve for x
    x = 60,494,156,828.79/316,842.60
  6. Step 6: Final answer
    x = 190,928.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.