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Finding the Fourth Proportional to 104,601.30, 156,671.55 and 90,777.30

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Solution

The fourth proportional to 104,601.30, 156,671.55 and 90,777.30 is: 135,966.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,601.30 : 156,671.55 = 90,777.30 : x
  2. Step 2: Convert to fraction form
    104,601.30/156,671.55 = 90,777.30/x
  3. Step 3: Cross multiply
    104,601.30x = 156,671.55 × 90,777.30
  4. Step 4: Simplify right side
    104,601.30x = 14,222,220,295.82
  5. Step 5: Solve for x
    x = 14,222,220,295.82/104,601.30
  6. Step 6: Final answer
    x = 135,966.00

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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.