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Finding the Fourth Proportional to 64,503.80, 96,755.70 and 60,615.80

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Solution

The fourth proportional to 64,503.80, 96,755.70 and 60,615.80 is: 90,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,503.80 : 96,755.70 = 60,615.80 : x
  2. Step 2: Convert to fraction form
    64,503.80/96,755.70 = 60,615.80/x
  3. Step 3: Cross multiply
    64,503.80x = 96,755.70 × 60,615.80
  4. Step 4: Simplify right side
    64,503.80x = 5,864,924,160.06
  5. Step 5: Solve for x
    x = 5,864,924,160.06/64,503.80
  6. Step 6: Final answer
    x = 90,923.70

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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.