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Finding the Fourth Proportional to 64,832.40, 97,029.90 and 56,959.20

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Solution

The fourth proportional to 64,832.40, 97,029.90 and 56,959.20 is: 85,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,832.40 : 97,029.90 = 56,959.20 : x
  2. Step 2: Convert to fraction form
    64,832.40/97,029.90 = 56,959.20/x
  3. Step 3: Cross multiply
    64,832.40x = 97,029.90 × 56,959.20
  4. Step 4: Simplify right side
    64,832.40x = 5,526,745,480.08
  5. Step 5: Solve for x
    x = 5,526,745,480.08/64,832.40
  6. Step 6: Final answer
    x = 85,246.66

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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.