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Finding the Fourth Proportional to 276,666.30, 414,999.45 and 248,672.70

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Solution

The fourth proportional to 276,666.30, 414,999.45 and 248,672.70 is: 373,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,666.30 : 414,999.45 = 248,672.70 : x
  2. Step 2: Convert to fraction form
    276,666.30/414,999.45 = 248,672.70/x
  3. Step 3: Cross multiply
    276,666.30x = 414,999.45 × 248,672.70
  4. Step 4: Simplify right side
    276,666.30x = 103,199,033,730.02
  5. Step 5: Solve for x
    x = 103,199,033,730.02/276,666.30
  6. Step 6: Final answer
    x = 373,009.05

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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.