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Finding the Fourth Proportional to 94,420.80, 141,501.60 and 76,924.80

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Solution

The fourth proportional to 94,420.80, 141,501.60 and 76,924.80 is: 115,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,420.80 : 141,501.60 = 76,924.80 : x
  2. Step 2: Convert to fraction form
    94,420.80/141,501.60 = 76,924.80/x
  3. Step 3: Cross multiply
    94,420.80x = 141,501.60 × 76,924.80
  4. Step 4: Simplify right side
    94,420.80x = 10,884,982,279.68
  5. Step 5: Solve for x
    x = 10,884,982,279.68/94,420.80
  6. Step 6: Final answer
    x = 115,281.61

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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.