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Finding the Fourth Proportional to 242,872.30, 364,334.36 and 65,381.86

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Solution

The fourth proportional to 242,872.30, 364,334.36 and 65,381.86 is: 98,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,872.30 : 364,334.36 = 65,381.86 : x
  2. Step 2: Convert to fraction form
    242,872.30/364,334.36 = 65,381.86/x
  3. Step 3: Cross multiply
    242,872.30x = 364,334.36 × 65,381.86
  4. Step 4: Simplify right side
    242,872.30x = 23,820,858,118.71
  5. Step 5: Solve for x
    x = 23,820,858,118.71/242,872.30
  6. Step 6: Final answer
    x = 98,079.77

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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.