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Finding the Fourth Proportional to 66,304.40, 99,456.60 and 59,622.80

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Solution

The fourth proportional to 66,304.40, 99,456.60 and 59,622.80 is: 89,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,304.40 : 99,456.60 = 59,622.80 : x
  2. Step 2: Convert to fraction form
    66,304.40/99,456.60 = 59,622.80/x
  3. Step 3: Cross multiply
    66,304.40x = 99,456.60 × 59,622.80
  4. Step 4: Simplify right side
    66,304.40x = 5,929,880,970.48
  5. Step 5: Solve for x
    x = 5,929,880,970.48/66,304.40
  6. Step 6: Final answer
    x = 89,434.20

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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.