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Finding the Fourth Proportional to 64,373.10, 96,559.65 and 53,438.10

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Solution

The fourth proportional to 64,373.10, 96,559.65 and 53,438.10 is: 80,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,373.10 : 96,559.65 = 53,438.10 : x
  2. Step 2: Convert to fraction form
    64,373.10/96,559.65 = 53,438.10/x
  3. Step 3: Cross multiply
    64,373.10x = 96,559.65 × 53,438.10
  4. Step 4: Simplify right side
    64,373.10x = 5,159,964,232.67
  5. Step 5: Solve for x
    x = 5,159,964,232.67/64,373.10
  6. Step 6: Final answer
    x = 80,157.15

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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.