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Finding the Fourth Proportional to 557,131.76, 835,681.70 and 157,771.59

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Solution

The fourth proportional to 557,131.76, 835,681.70 and 157,771.59 is: 236,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,131.76 : 835,681.70 = 157,771.59 : x
  2. Step 2: Convert to fraction form
    557,131.76/835,681.70 = 157,771.59/x
  3. Step 3: Cross multiply
    557,131.76x = 835,681.70 × 157,771.59
  4. Step 4: Simplify right side
    557,131.76x = 131,846,829,754.05
  5. Step 5: Solve for x
    x = 131,846,829,754.05/557,131.76
  6. Step 6: Final answer
    x = 236,652.87

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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.