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Finding the Fourth Proportional to 144,615.74, 216,872.80 and 43,383.60

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Solution

The fourth proportional to 144,615.74, 216,872.80 and 43,383.60 is: 65,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,615.74 : 216,872.80 = 43,383.60 : x
  2. Step 2: Convert to fraction form
    144,615.74/216,872.80 = 43,383.60/x
  3. Step 3: Cross multiply
    144,615.74x = 216,872.80 × 43,383.60
  4. Step 4: Simplify right side
    144,615.74x = 9,408,722,806.08
  5. Step 5: Solve for x
    x = 9,408,722,806.08/144,615.74
  6. Step 6: Final answer
    x = 65,060.16

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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.