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Finding the Fourth Proportional to 144,707.72, 217,058.70 and 39,535.88

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Solution

The fourth proportional to 144,707.72, 217,058.70 and 39,535.88 is: 59,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,707.72 : 217,058.70 = 39,535.88 : x
  2. Step 2: Convert to fraction form
    144,707.72/217,058.70 = 39,535.88/x
  3. Step 3: Cross multiply
    144,707.72x = 217,058.70 × 39,535.88
  4. Step 4: Simplify right side
    144,707.72x = 8,581,606,716.16
  5. Step 5: Solve for x
    x = 8,581,606,716.16/144,707.72
  6. Step 6: Final answer
    x = 59,303.03

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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.