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Finding the Fourth Proportional to 144,625.70, 216,938.55 and 38,009.45

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Solution

The fourth proportional to 144,625.70, 216,938.55 and 38,009.45 is: 57,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,625.70 : 216,938.55 = 38,009.45 : x
  2. Step 2: Convert to fraction form
    144,625.70/216,938.55 = 38,009.45/x
  3. Step 3: Cross multiply
    144,625.70x = 216,938.55 × 38,009.45
  4. Step 4: Simplify right side
    144,625.70x = 8,245,714,969.30
  5. Step 5: Solve for x
    x = 8,245,714,969.30/144,625.70
  6. Step 6: Final answer
    x = 57,014.18

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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.