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Finding the Fourth Proportional to 235,416.56, 324,870.99 and 127,989.30

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Solution

The fourth proportional to 235,416.56, 324,870.99 and 127,989.30 is: 176,623.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,416.56 : 324,870.99 = 127,989.30 : x
  2. Step 2: Convert to fraction form
    235,416.56/324,870.99 = 127,989.30/x
  3. Step 3: Cross multiply
    235,416.56x = 324,870.99 × 127,989.30
  4. Step 4: Simplify right side
    235,416.56x = 41,580,010,600.41
  5. Step 5: Solve for x
    x = 41,580,010,600.41/235,416.56
  6. Step 6: Final answer
    x = 176,623.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.