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Finding the Fourth Proportional to 94,738.40, 142,172.40 and 52,618.40

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Solution

The fourth proportional to 94,738.40, 142,172.40 and 52,618.40 is: 78,963.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,738.40 : 142,172.40 = 52,618.40 : x
  2. Step 2: Convert to fraction form
    94,738.40/142,172.40 = 52,618.40/x
  3. Step 3: Cross multiply
    94,738.40x = 142,172.40 × 52,618.40
  4. Step 4: Simplify right side
    94,738.40x = 7,480,884,212.16
  5. Step 5: Solve for x
    x = 7,480,884,212.16/94,738.40
  6. Step 6: Final answer
    x = 78,963.59

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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.