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Finding the Fourth Proportional to 64,246.40, 96,304.80 and 29,211.20

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Solution

The fourth proportional to 64,246.40, 96,304.80 and 29,211.20 is: 43,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,246.40 : 96,304.80 = 29,211.20 : x
  2. Step 2: Convert to fraction form
    64,246.40/96,304.80 = 29,211.20/x
  3. Step 3: Cross multiply
    64,246.40x = 96,304.80 × 29,211.20
  4. Step 4: Simplify right side
    64,246.40x = 2,813,178,773.76
  5. Step 5: Solve for x
    x = 2,813,178,773.76/64,246.40
  6. Step 6: Final answer
    x = 43,787.34

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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.