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Finding the Fourth Proportional to 229,355.74, 316,518.99 and 127,383.11

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Solution

The fourth proportional to 229,355.74, 316,518.99 and 127,383.11 is: 175,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,355.74 : 316,518.99 = 127,383.11 : x
  2. Step 2: Convert to fraction form
    229,355.74/316,518.99 = 127,383.11/x
  3. Step 3: Cross multiply
    229,355.74x = 316,518.99 × 127,383.11
  4. Step 4: Simplify right side
    229,355.74x = 40,319,171,467.15
  5. Step 5: Solve for x
    x = 40,319,171,467.15/229,355.74
  6. Step 6: Final answer
    x = 175,793.17

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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.