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Finding the Fourth Proportional to 104,611.17, 144,432.92 and 80,368.95

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Solution

The fourth proportional to 104,611.17, 144,432.92 and 80,368.95 is: 110,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,611.17 : 144,432.92 = 80,368.95 : x
  2. Step 2: Convert to fraction form
    104,611.17/144,432.92 = 80,368.95/x
  3. Step 3: Cross multiply
    104,611.17x = 144,432.92 × 80,368.95
  4. Step 4: Simplify right side
    104,611.17x = 11,607,922,125.83
  5. Step 5: Solve for x
    x = 11,607,922,125.83/104,611.17
  6. Step 6: Final answer
    x = 110,962.55

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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.