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Finding the Fourth Proportional to 45,157.60, 67,699.40 and 17,061.67

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Solution

The fourth proportional to 45,157.60, 67,699.40 and 17,061.67 is: 25,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.60 : 67,699.40 = 17,061.67 : x
  2. Step 2: Convert to fraction form
    45,157.60/67,699.40 = 17,061.67/x
  3. Step 3: Cross multiply
    45,157.60x = 67,699.40 × 17,061.67
  4. Step 4: Simplify right side
    45,157.60x = 1,155,064,821.31
  5. Step 5: Solve for x
    x = 1,155,064,821.31/45,157.60
  6. Step 6: Final answer
    x = 25,578.52

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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.