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Finding the Fourth Proportional to 64,216.40, 96,259.80 and 29,181.20

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Solution

The fourth proportional to 64,216.40, 96,259.80 and 29,181.20 is: 43,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,216.40 : 96,259.80 = 29,181.20 : x
  2. Step 2: Convert to fraction form
    64,216.40/96,259.80 = 29,181.20/x
  3. Step 3: Cross multiply
    64,216.40x = 96,259.80 × 29,181.20
  4. Step 4: Simplify right side
    64,216.40x = 2,808,976,475.76
  5. Step 5: Solve for x
    x = 2,808,976,475.76/64,216.40
  6. Step 6: Final answer
    x = 43,742.35

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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.