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Finding the Fourth Proportional to 572,859.26, 859,449.76 and 168,061.02

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Solution

The fourth proportional to 572,859.26, 859,449.76 and 168,061.02 is: 252,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,859.26 : 859,449.76 = 168,061.02 : x
  2. Step 2: Convert to fraction form
    572,859.26/859,449.76 = 168,061.02/x
  3. Step 3: Cross multiply
    572,859.26x = 859,449.76 × 168,061.02
  4. Step 4: Simplify right side
    572,859.26x = 144,440,003,304.36
  5. Step 5: Solve for x
    x = 144,440,003,304.36/572,859.26
  6. Step 6: Final answer
    x = 252,138.72

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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.