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Finding the Fourth Proportional to 213,125.88, 319,748.76 and 93,193.38

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Solution

The fourth proportional to 213,125.88, 319,748.76 and 93,193.38 is: 139,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,125.88 : 319,748.76 = 93,193.38 : x
  2. Step 2: Convert to fraction form
    213,125.88/319,748.76 = 93,193.38/x
  3. Step 3: Cross multiply
    213,125.88x = 319,748.76 × 93,193.38
  4. Step 4: Simplify right side
    213,125.88x = 29,798,467,695.21
  5. Step 5: Solve for x
    x = 29,798,467,695.21/213,125.88
  6. Step 6: Final answer
    x = 139,816.28

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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.