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Finding the Fourth Proportional to 104,644.64, 156,966.96 and 30,772.64

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Solution

The fourth proportional to 104,644.64, 156,966.96 and 30,772.64 is: 46,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.64 : 156,966.96 = 30,772.64 : x
  2. Step 2: Convert to fraction form
    104,644.64/156,966.96 = 30,772.64/x
  3. Step 3: Cross multiply
    104,644.64x = 156,966.96 × 30,772.64
  4. Step 4: Simplify right side
    104,644.64x = 4,830,286,967.14
  5. Step 5: Solve for x
    x = 4,830,286,967.14/104,644.64
  6. Step 6: Final answer
    x = 46,158.95

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1.5x scale

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.