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Finding the Fourth Proportional to 274,665.64, 379,038.53 and 152,165.98

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Solution

The fourth proportional to 274,665.64, 379,038.53 and 152,165.98 is: 209,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,665.64 : 379,038.53 = 152,165.98 : x
  2. Step 2: Convert to fraction form
    274,665.64/379,038.53 = 152,165.98/x
  3. Step 3: Cross multiply
    274,665.64x = 379,038.53 × 152,165.98
  4. Step 4: Simplify right side
    274,665.64x = 57,676,769,375.21
  5. Step 5: Solve for x
    x = 57,676,769,375.21/274,665.64
  6. Step 6: Final answer
    x = 209,989.02

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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.