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Finding the Fourth Proportional to 551,159.50, 826,526.66 and 214,155.78

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Solution

The fourth proportional to 551,159.50, 826,526.66 and 214,155.78 is: 321,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,159.50 : 826,526.66 = 214,155.78 : x
  2. Step 2: Convert to fraction form
    551,159.50/826,526.66 = 214,155.78/x
  3. Step 3: Cross multiply
    551,159.50x = 826,526.66 × 214,155.78
  4. Step 4: Simplify right side
    551,159.50x = 177,005,462,644.37
  5. Step 5: Solve for x
    x = 177,005,462,644.37/551,159.50
  6. Step 6: Final answer
    x = 321,151.07

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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.