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Finding the Fourth Proportional to 572,615.10, 858,703.95 and 173,123.10

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Solution

The fourth proportional to 572,615.10, 858,703.95 and 173,123.10 is: 259,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,615.10 : 858,703.95 = 173,123.10 : x
  2. Step 2: Convert to fraction form
    572,615.10/858,703.95 = 173,123.10/x
  3. Step 3: Cross multiply
    572,615.10x = 858,703.95 × 173,123.10
  4. Step 4: Simplify right side
    572,615.10x = 148,661,489,806.25
  5. Step 5: Solve for x
    x = 148,661,489,806.25/572,615.10
  6. Step 6: Final answer
    x = 259,618.53

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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.