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Finding the Fourth Proportional to 296,987.88, 445,436.54 and 97,329

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Solution

The fourth proportional to 296,987.88, 445,436.54 and 97,329 is: 145,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,987.88 : 445,436.54 = 97,329 : x
  2. Step 2: Convert to fraction form
    296,987.88/445,436.54 = 97,329/x
  3. Step 3: Cross multiply
    296,987.88x = 445,436.54 × 97,329
  4. Step 4: Simplify right side
    296,987.88x = 43,353,893,001.66
  5. Step 5: Solve for x
    x = 43,353,893,001.66/296,987.88
  6. Step 6: Final answer
    x = 145,978.66

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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.