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Finding the Fourth Proportional to 254,084.55, 350,634.29 and 139,360.84

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Solution

The fourth proportional to 254,084.55, 350,634.29 and 139,360.84 is: 192,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,084.55 : 350,634.29 = 139,360.84 : x
  2. Step 2: Convert to fraction form
    254,084.55/350,634.29 = 139,360.84/x
  3. Step 3: Cross multiply
    254,084.55x = 350,634.29 × 139,360.84
  4. Step 4: Simplify right side
    254,084.55x = 48,864,687,613.81
  5. Step 5: Solve for x
    x = 48,864,687,613.81/254,084.55
  6. Step 6: Final answer
    x = 192,316.65

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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.