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Finding the Fourth Proportional to 328,792.77, 493,132.46 and 92,079.18

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Solution

The fourth proportional to 328,792.77, 493,132.46 and 92,079.18 is: 138,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,792.77 : 493,132.46 = 92,079.18 : x
  2. Step 2: Convert to fraction form
    328,792.77/493,132.46 = 92,079.18/x
  3. Step 3: Cross multiply
    328,792.77x = 493,132.46 × 92,079.18
  4. Step 4: Simplify right side
    328,792.77x = 45,407,232,087.79
  5. Step 5: Solve for x
    x = 45,407,232,087.79/328,792.77
  6. Step 6: Final answer
    x = 138,102.89

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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.