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Finding the Fourth Proportional to 104,476.44, 144,173.76 and 56,728.80

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Solution

The fourth proportional to 104,476.44, 144,173.76 and 56,728.80 is: 78,283.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,476.44 : 144,173.76 = 56,728.80 : x
  2. Step 2: Convert to fraction form
    104,476.44/144,173.76 = 56,728.80/x
  3. Step 3: Cross multiply
    104,476.44x = 144,173.76 × 56,728.80
  4. Step 4: Simplify right side
    104,476.44x = 8,178,804,396.29
  5. Step 5: Solve for x
    x = 8,178,804,396.29/104,476.44
  6. Step 6: Final answer
    x = 78,283.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.