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Finding the Fourth Proportional to 572,609.80, 859,011.90 and 173,247.40

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Solution

The fourth proportional to 572,609.80, 859,011.90 and 173,247.40 is: 259,900.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,609.80 : 859,011.90 = 173,247.40 : x
  2. Step 2: Convert to fraction form
    572,609.80/859,011.90 = 173,247.40/x
  3. Step 3: Cross multiply
    572,609.80x = 859,011.90 × 173,247.40
  4. Step 4: Simplify right side
    572,609.80x = 148,821,578,244.06
  5. Step 5: Solve for x
    x = 148,821,578,244.06/572,609.80
  6. Step 6: Final answer
    x = 259,900.51

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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.