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Finding the Fourth Proportional to 64,885.86, 97,319.07 and 53,863.38

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Solution

The fourth proportional to 64,885.86, 97,319.07 and 53,863.38 is: 80,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.86 : 97,319.07 = 53,863.38 : x
  2. Step 2: Convert to fraction form
    64,885.86/97,319.07 = 53,863.38/x
  3. Step 3: Cross multiply
    64,885.86x = 97,319.07 × 53,863.38
  4. Step 4: Simplify right side
    64,885.86x = 5,241,934,048.66
  5. Step 5: Solve for x
    x = 5,241,934,048.66/64,885.86
  6. Step 6: Final answer
    x = 80,787.00

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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.