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Finding the Fourth Proportional to 296,721.60, 444,885.60 and 163,665.60

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Solution

The fourth proportional to 296,721.60, 444,885.60 and 163,665.60 is: 245,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,721.60 : 444,885.60 = 163,665.60 : x
  2. Step 2: Convert to fraction form
    296,721.60/444,885.60 = 163,665.60/x
  3. Step 3: Cross multiply
    296,721.60x = 444,885.60 × 163,665.60
  4. Step 4: Simplify right side
    296,721.60x = 72,812,468,655.36
  5. Step 5: Solve for x
    x = 72,812,468,655.36/296,721.60
  6. Step 6: Final answer
    x = 245,389.85

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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.