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Finding the Fourth Proportional to 551,140.84, 826,715.70 and 151,803.64

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Solution

The fourth proportional to 551,140.84, 826,715.70 and 151,803.64 is: 227,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,140.84 : 826,715.70 = 151,803.64 : x
  2. Step 2: Convert to fraction form
    551,140.84/826,715.70 = 151,803.64/x
  3. Step 3: Cross multiply
    551,140.84x = 826,715.70 × 151,803.64
  4. Step 4: Simplify right side
    551,140.84x = 125,498,452,505.15
  5. Step 5: Solve for x
    x = 125,498,452,505.15/551,140.84
  6. Step 6: Final answer
    x = 227,706.68

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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.