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Finding the Fourth Proportional to 325,392.88, 488,404.95 and 157,031.69

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Solution

The fourth proportional to 325,392.88, 488,404.95 and 157,031.69 is: 235,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,392.88 : 488,404.95 = 157,031.69 : x
  2. Step 2: Convert to fraction form
    325,392.88/488,404.95 = 157,031.69/x
  3. Step 3: Cross multiply
    325,392.88x = 488,404.95 × 157,031.69
  4. Step 4: Simplify right side
    325,392.88x = 76,695,054,702.87
  5. Step 5: Solve for x
    x = 76,695,054,702.87/325,392.88
  6. Step 6: Final answer
    x = 235,699.86

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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.