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Finding the Fourth Proportional to 479,269.53, 718,904.34 and 163,729.17

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Solution

The fourth proportional to 479,269.53, 718,904.34 and 163,729.17 is: 245,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,269.53 : 718,904.34 = 163,729.17 : x
  2. Step 2: Convert to fraction form
    479,269.53/718,904.34 = 163,729.17/x
  3. Step 3: Cross multiply
    479,269.53x = 718,904.34 × 163,729.17
  4. Step 4: Simplify right side
    479,269.53x = 117,705,610,897.60
  5. Step 5: Solve for x
    x = 117,705,610,897.60/479,269.53
  6. Step 6: Final answer
    x = 245,593.77

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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.