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Finding the Fourth Proportional to 144,611.22, 216,634.32 and 99,624.63

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Solution

The fourth proportional to 144,611.22, 216,634.32 and 99,624.63 is: 149,242.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,611.22 : 216,634.32 = 99,624.63 : x
  2. Step 2: Convert to fraction form
    144,611.22/216,634.32 = 99,624.63/x
  3. Step 3: Cross multiply
    144,611.22x = 216,634.32 × 99,624.63
  4. Step 4: Simplify right side
    144,611.22x = 21,582,113,975.30
  5. Step 5: Solve for x
    x = 21,582,113,975.30/144,611.22
  6. Step 6: Final answer
    x = 149,242.32

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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.