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Finding the Fourth Proportional to 572,169.56, 857,656.08 and 192,959.28

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Solution

The fourth proportional to 572,169.56, 857,656.08 and 192,959.28 is: 289,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,169.56 : 857,656.08 = 192,959.28 : x
  2. Step 2: Convert to fraction form
    572,169.56/857,656.08 = 192,959.28/x
  3. Step 3: Cross multiply
    572,169.56x = 857,656.08 × 192,959.28
  4. Step 4: Simplify right side
    572,169.56x = 165,492,699,684.42
  5. Step 5: Solve for x
    x = 165,492,699,684.42/572,169.56
  6. Step 6: Final answer
    x = 289,237.16

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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.