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Finding the Fourth Proportional to 572,503.50, 858,755.61 and 178,519.50

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Solution

The fourth proportional to 572,503.50, 858,755.61 and 178,519.50 is: 267,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,503.50 : 858,755.61 = 178,519.50 : x
  2. Step 2: Convert to fraction form
    572,503.50/858,755.61 = 178,519.50/x
  3. Step 3: Cross multiply
    572,503.50x = 858,755.61 × 178,519.50
  4. Step 4: Simplify right side
    572,503.50x = 153,304,622,119.40
  5. Step 5: Solve for x
    x = 153,304,622,119.40/572,503.50
  6. Step 6: Final answer
    x = 267,779.36

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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.