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Finding the Fourth Proportional to 64,841.13, 97,214.46 and 43,728.72

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Solution

The fourth proportional to 64,841.13, 97,214.46 and 43,728.72 is: 65,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,841.13 : 97,214.46 = 43,728.72 : x
  2. Step 2: Convert to fraction form
    64,841.13/97,214.46 = 43,728.72/x
  3. Step 3: Cross multiply
    64,841.13x = 97,214.46 × 43,728.72
  4. Step 4: Simplify right side
    64,841.13x = 4,251,063,901.29
  5. Step 5: Solve for x
    x = 4,251,063,901.29/64,841.13
  6. Step 6: Final answer
    x = 65,561.22

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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.