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Finding the Fourth Proportional to 276,326.50, 381,330.58 and 157,094.50

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Solution

The fourth proportional to 276,326.50, 381,330.58 and 157,094.50 is: 216,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,326.50 : 381,330.58 = 157,094.50 : x
  2. Step 2: Convert to fraction form
    276,326.50/381,330.58 = 157,094.50/x
  3. Step 3: Cross multiply
    276,326.50x = 381,330.58 × 157,094.50
  4. Step 4: Simplify right side
    276,326.50x = 59,904,936,799.81
  5. Step 5: Solve for x
    x = 59,904,936,799.81/276,326.50
  6. Step 6: Final answer
    x = 216,790.42

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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.