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Finding the Fourth Proportional to 64,708.86, 96,543.53 and 57,604.53

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Solution

The fourth proportional to 64,708.86, 96,543.53 and 57,604.53 is: 85,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.86 : 96,543.53 = 57,604.53 : x
  2. Step 2: Convert to fraction form
    64,708.86/96,543.53 = 57,604.53/x
  3. Step 3: Cross multiply
    64,708.86x = 96,543.53 × 57,604.53
  4. Step 4: Simplify right side
    64,708.86x = 5,561,344,670.19
  5. Step 5: Solve for x
    x = 5,561,344,670.19/64,708.86
  6. Step 6: Final answer
    x = 85,944.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.