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Finding the Fourth Proportional to 220,999.71, 304,899.60 and 144,562.44

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Solution

The fourth proportional to 220,999.71, 304,899.60 and 144,562.44 is: 199,443.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,999.71 : 304,899.60 = 144,562.44 : x
  2. Step 2: Convert to fraction form
    220,999.71/304,899.60 = 144,562.44/x
  3. Step 3: Cross multiply
    220,999.71x = 304,899.60 × 144,562.44
  4. Step 4: Simplify right side
    220,999.71x = 44,077,030,131.02
  5. Step 5: Solve for x
    x = 44,077,030,131.02/220,999.71
  6. Step 6: Final answer
    x = 199,443.84

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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.