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Finding the Fourth Proportional to 276,096.89, 381,009.09 and 153,587.81

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Solution

The fourth proportional to 276,096.89, 381,009.09 and 153,587.81 is: 211,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,096.89 : 381,009.09 = 153,587.81 : x
  2. Step 2: Convert to fraction form
    276,096.89/381,009.09 = 153,587.81/x
  3. Step 3: Cross multiply
    276,096.89x = 381,009.09 × 153,587.81
  4. Step 4: Simplify right side
    276,096.89x = 58,518,349,818.15
  5. Step 5: Solve for x
    x = 58,518,349,818.15/276,096.89
  6. Step 6: Final answer
    x = 211,948.61

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1.5x scale

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.