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Finding the Fourth Proportional to 276,096.64, 381,008.74 and 153,587.54

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Solution

The fourth proportional to 276,096.64, 381,008.74 and 153,587.54 is: 211,948.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,096.64 : 381,008.74 = 153,587.54 : x
  2. Step 2: Convert to fraction form
    276,096.64/381,008.74 = 153,587.54/x
  3. Step 3: Cross multiply
    276,096.64x = 381,008.74 × 153,587.54
  4. Step 4: Simplify right side
    276,096.64x = 58,518,195,095.10
  5. Step 5: Solve for x
    x = 58,518,195,095.10/276,096.64
  6. Step 6: Final answer
    x = 211,948.23

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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.