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Finding the Fourth Proportional to 343,462.98, 515,188.80 and 94,144.98

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Solution

The fourth proportional to 343,462.98, 515,188.80 and 94,144.98 is: 141,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,462.98 : 515,188.80 = 94,144.98 : x
  2. Step 2: Convert to fraction form
    343,462.98/515,188.80 = 94,144.98/x
  3. Step 3: Cross multiply
    343,462.98x = 515,188.80 × 94,144.98
  4. Step 4: Simplify right side
    343,462.98x = 48,502,439,272.22
  5. Step 5: Solve for x
    x = 48,502,439,272.22/343,462.98
  6. Step 6: Final answer
    x = 141,215.92

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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.