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Finding the Fourth Proportional to 303,632.40, 419,049.64 and 176,308.02

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Solution

The fourth proportional to 303,632.40, 419,049.64 and 176,308.02 is: 243,326.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,632.40 : 419,049.64 = 176,308.02 : x
  2. Step 2: Convert to fraction form
    303,632.40/419,049.64 = 176,308.02/x
  3. Step 3: Cross multiply
    303,632.40x = 419,049.64 × 176,308.02
  4. Step 4: Simplify right side
    303,632.40x = 73,881,812,310.11
  5. Step 5: Solve for x
    x = 73,881,812,310.11/303,632.40
  6. Step 6: Final answer
    x = 243,326.51

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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.