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Finding the Fourth Proportional to 159,645.23, 239,486.38 and 53,038.70

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Solution

The fourth proportional to 159,645.23, 239,486.38 and 53,038.70 is: 79,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,645.23 : 239,486.38 = 53,038.70 : x
  2. Step 2: Convert to fraction form
    159,645.23/239,486.38 = 53,038.70/x
  3. Step 3: Cross multiply
    159,645.23x = 239,486.38 × 53,038.70
  4. Step 4: Simplify right side
    159,645.23x = 12,702,045,997.71
  5. Step 5: Solve for x
    x = 12,702,045,997.71/159,645.23
  6. Step 6: Final answer
    x = 79,564.21

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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.