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Finding the Fourth Proportional to 572,675.80, 859,110.90 and 173,313.40

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Solution

The fourth proportional to 572,675.80, 859,110.90 and 173,313.40 is: 259,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,675.80 : 859,110.90 = 173,313.40 : x
  2. Step 2: Convert to fraction form
    572,675.80/859,110.90 = 173,313.40/x
  3. Step 3: Cross multiply
    572,675.80x = 859,110.90 × 173,313.40
  4. Step 4: Simplify right side
    572,675.80x = 148,895,431,056.06
  5. Step 5: Solve for x
    x = 148,895,431,056.06/572,675.80
  6. Step 6: Final answer
    x = 259,999.52

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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.