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Finding the Fourth Proportional to 453,075.78, 679,189.23 and 153,346.62

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Solution

The fourth proportional to 453,075.78, 679,189.23 and 153,346.62 is: 229,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,075.78 : 679,189.23 = 153,346.62 : x
  2. Step 2: Convert to fraction form
    453,075.78/679,189.23 = 153,346.62/x
  3. Step 3: Cross multiply
    453,075.78x = 679,189.23 × 153,346.62
  4. Step 4: Simplify right side
    453,075.78x = 104,151,372,760.90
  5. Step 5: Solve for x
    x = 104,151,372,760.90/453,075.78
  6. Step 6: Final answer
    x = 229,876.28

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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.