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Finding the Fourth Proportional to 572,679.60, 858,800.70 and 173,187.60

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Solution

The fourth proportional to 572,679.60, 858,800.70 and 173,187.60 is: 259,715.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,679.60 : 858,800.70 = 173,187.60 : x
  2. Step 2: Convert to fraction form
    572,679.60/858,800.70 = 173,187.60/x
  3. Step 3: Cross multiply
    572,679.60x = 858,800.70 × 173,187.60
  4. Step 4: Simplify right side
    572,679.60x = 148,733,632,111.32
  5. Step 5: Solve for x
    x = 148,733,632,111.32/572,679.60
  6. Step 6: Final answer
    x = 259,715.26

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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.