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Finding the Fourth Proportional to 343,420.89, 515,125.86 and 94,102.89

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Solution

The fourth proportional to 343,420.89, 515,125.86 and 94,102.89 is: 141,152.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,420.89 : 515,125.86 = 94,102.89 : x
  2. Step 2: Convert to fraction form
    343,420.89/515,125.86 = 94,102.89/x
  3. Step 3: Cross multiply
    343,420.89x = 515,125.86 × 94,102.89
  4. Step 4: Simplify right side
    343,420.89x = 48,474,832,139.74
  5. Step 5: Solve for x
    x = 48,474,832,139.74/343,420.89
  6. Step 6: Final answer
    x = 141,152.83

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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.