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Finding the Fourth Proportional to 235,254.50, 324,643.79 and 127,824.05

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Solution

The fourth proportional to 235,254.50, 324,643.79 and 127,824.05 is: 176,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,254.50 : 324,643.79 = 127,824.05 : x
  2. Step 2: Convert to fraction form
    235,254.50/324,643.79 = 127,824.05/x
  3. Step 3: Cross multiply
    235,254.50x = 324,643.79 × 127,824.05
  4. Step 4: Simplify right side
    235,254.50x = 41,497,281,782.81
  5. Step 5: Solve for x
    x = 41,497,281,782.81/235,254.50
  6. Step 6: Final answer
    x = 176,393.15

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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.