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Finding the Fourth Proportional to 164,915.60, 247,265.40 and 65,015.60

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Solution

The fourth proportional to 164,915.60, 247,265.40 and 65,015.60 is: 97,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,915.60 : 247,265.40 = 65,015.60 : x
  2. Step 2: Convert to fraction form
    164,915.60/247,265.40 = 65,015.60/x
  3. Step 3: Cross multiply
    164,915.60x = 247,265.40 × 65,015.60
  4. Step 4: Simplify right side
    164,915.60x = 16,076,108,340.24
  5. Step 5: Solve for x
    x = 16,076,108,340.24/164,915.60
  6. Step 6: Final answer
    x = 97,480.82

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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.