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Finding the Fourth Proportional to 457,624.92, 686,536.47 and 187,753.67

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Solution

The fourth proportional to 457,624.92, 686,536.47 and 187,753.67 is: 281,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,624.92 : 686,536.47 = 187,753.67 : x
  2. Step 2: Convert to fraction form
    457,624.92/686,536.47 = 187,753.67/x
  3. Step 3: Cross multiply
    457,624.92x = 686,536.47 × 187,753.67
  4. Step 4: Simplify right side
    457,624.92x = 128,899,741,831.35
  5. Step 5: Solve for x
    x = 128,899,741,831.35/457,624.92
  6. Step 6: Final answer
    x = 281,671.16

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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.