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Finding the Fourth Proportional to 104,611.10, 144,432.82 and 80,368.88

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Solution

The fourth proportional to 104,611.10, 144,432.82 and 80,368.88 is: 110,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.10 : 144,432.82 = 80,368.88 : x
  2. Step 2: Convert to fraction form
    104,611.10/144,432.82 = 80,368.88/x
  3. Step 3: Cross multiply
    104,611.10x = 144,432.82 × 80,368.88
  4. Step 4: Simplify right side
    104,611.10x = 11,607,903,356.94
  5. Step 5: Solve for x
    x = 11,607,903,356.94/104,611.10
  6. Step 6: Final answer
    x = 110,962.45

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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.