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Finding the Fourth Proportional to 144,657.09, 217,020.26 and 60,370.31

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Solution

The fourth proportional to 144,657.09, 217,020.26 and 60,370.31 is: 90,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,657.09 : 217,020.26 = 60,370.31 : x
  2. Step 2: Convert to fraction form
    144,657.09/217,020.26 = 60,370.31/x
  3. Step 3: Cross multiply
    144,657.09x = 217,020.26 × 60,370.31
  4. Step 4: Simplify right side
    144,657.09x = 13,101,581,065.96
  5. Step 5: Solve for x
    x = 13,101,581,065.96/144,657.09
  6. Step 6: Final answer
    x = 90,569.92

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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.