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Finding the Fourth Proportional to 551,312.19, 826,818.91 and 151,857.96

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Solution

The fourth proportional to 551,312.19, 826,818.91 and 151,857.96 is: 227,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,312.19 : 826,818.91 = 151,857.96 : x
  2. Step 2: Convert to fraction form
    551,312.19/826,818.91 = 151,857.96/x
  3. Step 3: Cross multiply
    551,312.19x = 826,818.91 × 151,857.96
  4. Step 4: Simplify right side
    551,312.19x = 125,559,032,962.02
  5. Step 5: Solve for x
    x = 125,559,032,962.02/551,312.19
  6. Step 6: Final answer
    x = 227,745.79

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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.