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Finding the Fourth Proportional to 289,592.63, 399,621.48 and 168,753.59

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Solution

The fourth proportional to 289,592.63, 399,621.48 and 168,753.59 is: 232,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,592.63 : 399,621.48 = 168,753.59 : x
  2. Step 2: Convert to fraction form
    289,592.63/399,621.48 = 168,753.59/x
  3. Step 3: Cross multiply
    289,592.63x = 399,621.48 × 168,753.59
  4. Step 4: Simplify right side
    289,592.63x = 67,437,559,391.11
  5. Step 5: Solve for x
    x = 67,437,559,391.11/289,592.63
  6. Step 6: Final answer
    x = 232,870.43

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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.