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Finding the Fourth Proportional to 347,688.88, 521,449.02 and 94,970.54

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Solution

The fourth proportional to 347,688.88, 521,449.02 and 94,970.54 is: 142,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,688.88 : 521,449.02 = 94,970.54 : x
  2. Step 2: Convert to fraction form
    347,688.88/521,449.02 = 94,970.54/x
  3. Step 3: Cross multiply
    347,688.88x = 521,449.02 × 94,970.54
  4. Step 4: Simplify right side
    347,688.88x = 49,522,295,011.87
  5. Step 5: Solve for x
    x = 49,522,295,011.87/347,688.88
  6. Step 6: Final answer
    x = 142,432.78

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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.