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Finding the Fourth Proportional to 657,149.88, 985,725.90 and 158,513.88

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Solution

The fourth proportional to 657,149.88, 985,725.90 and 158,513.88 is: 237,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,149.88 : 985,725.90 = 158,513.88 : x
  2. Step 2: Convert to fraction form
    657,149.88/985,725.90 = 158,513.88/x
  3. Step 3: Cross multiply
    657,149.88x = 985,725.90 × 158,513.88
  4. Step 4: Simplify right side
    657,149.88x = 156,251,237,025.49
  5. Step 5: Solve for x
    x = 156,251,237,025.49/657,149.88
  6. Step 6: Final answer
    x = 237,771.08

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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.