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Finding the Fourth Proportional to 223,458.06, 308,365.70 and 126,670.86

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Solution

The fourth proportional to 223,458.06, 308,365.70 and 126,670.86 is: 174,802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,458.06 : 308,365.70 = 126,670.86 : x
  2. Step 2: Convert to fraction form
    223,458.06/308,365.70 = 126,670.86/x
  3. Step 3: Cross multiply
    223,458.06x = 308,365.70 × 126,670.86
  4. Step 4: Simplify right side
    223,458.06x = 39,060,947,780.15
  5. Step 5: Solve for x
    x = 39,060,947,780.15/223,458.06
  6. Step 6: Final answer
    x = 174,802.14

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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.