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Finding the Fourth Proportional to 104,046.40, 156,069.60 and 83,310.40

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Solution

The fourth proportional to 104,046.40, 156,069.60 and 83,310.40 is: 124,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,046.40 : 156,069.60 = 83,310.40 : x
  2. Step 2: Convert to fraction form
    104,046.40/156,069.60 = 83,310.40/x
  3. Step 3: Cross multiply
    104,046.40x = 156,069.60 × 83,310.40
  4. Step 4: Simplify right side
    104,046.40x = 13,002,220,803.84
  5. Step 5: Solve for x
    x = 13,002,220,803.84/104,046.40
  6. Step 6: Final answer
    x = 124,965.60

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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.