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Finding the Fourth Proportional to 107,348.76, 161,004.89 and 28,470.96

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Solution

The fourth proportional to 107,348.76, 161,004.89 and 28,470.96 is: 42,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,348.76 : 161,004.89 = 28,470.96 : x
  2. Step 2: Convert to fraction form
    107,348.76/161,004.89 = 28,470.96/x
  3. Step 3: Cross multiply
    107,348.76x = 161,004.89 × 28,470.96
  4. Step 4: Simplify right side
    107,348.76x = 4,583,963,640.64
  5. Step 5: Solve for x
    x = 4,583,963,640.64/107,348.76
  6. Step 6: Final answer
    x = 42,701.60

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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.