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Finding the Fourth Proportional to 572,991.72, 859,580.76 and 173,538.91

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Solution

The fourth proportional to 572,991.72, 859,580.76 and 173,538.91 is: 260,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,991.72 : 859,580.76 = 173,538.91 : x
  2. Step 2: Convert to fraction form
    572,991.72/859,580.76 = 173,538.91/x
  3. Step 3: Cross multiply
    572,991.72x = 859,580.76 × 173,538.91
  4. Step 4: Simplify right side
    572,991.72x = 149,170,704,061.32
  5. Step 5: Solve for x
    x = 149,170,704,061.32/572,991.72
  6. Step 6: Final answer
    x = 260,336.58

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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.