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Finding the Fourth Proportional to 368,689.02, 553,029.89 and 168,952.74

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Solution

The fourth proportional to 368,689.02, 553,029.89 and 168,952.74 is: 253,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,689.02 : 553,029.89 = 168,952.74 : x
  2. Step 2: Convert to fraction form
    368,689.02/553,029.89 = 168,952.74/x
  3. Step 3: Cross multiply
    368,689.02x = 553,029.89 × 168,952.74
  4. Step 4: Simplify right side
    368,689.02x = 93,435,914,372.63
  5. Step 5: Solve for x
    x = 93,435,914,372.63/368,689.02
  6. Step 6: Final answer
    x = 253,427.44

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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.