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Finding the Fourth Proportional to 435,005.28, 652,499.76 and 178,783.92

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Solution

The fourth proportional to 435,005.28, 652,499.76 and 178,783.92 is: 268,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,005.28 : 652,499.76 = 178,783.92 : x
  2. Step 2: Convert to fraction form
    435,005.28/652,499.76 = 178,783.92/x
  3. Step 3: Cross multiply
    435,005.28x = 652,499.76 × 178,783.92
  4. Step 4: Simplify right side
    435,005.28x = 116,656,464,891.86
  5. Step 5: Solve for x
    x = 116,656,464,891.86/435,005.28
  6. Step 6: Final answer
    x = 268,172.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.