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Finding the Fourth Proportional to 115,423.53, 173,213.06 and 45,294.57

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Solution

The fourth proportional to 115,423.53, 173,213.06 and 45,294.57 is: 67,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,423.53 : 173,213.06 = 45,294.57 : x
  2. Step 2: Convert to fraction form
    115,423.53/173,213.06 = 45,294.57/x
  3. Step 3: Cross multiply
    115,423.53x = 173,213.06 × 45,294.57
  4. Step 4: Simplify right side
    115,423.53x = 7,845,611,071.08
  5. Step 5: Solve for x
    x = 7,845,611,071.08/115,423.53
  6. Step 6: Final answer
    x = 67,972.37

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1.5x scale

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.