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Finding the Fourth Proportional to 64,891.40, 97,250.70 and 46,401.80

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Solution

The fourth proportional to 64,891.40, 97,250.70 and 46,401.80 is: 69,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.40 : 97,250.70 = 46,401.80 : x
  2. Step 2: Convert to fraction form
    64,891.40/97,250.70 = 46,401.80/x
  3. Step 3: Cross multiply
    64,891.40x = 97,250.70 × 46,401.80
  4. Step 4: Simplify right side
    64,891.40x = 4,512,607,531.26
  5. Step 5: Solve for x
    x = 4,512,607,531.26/64,891.40
  6. Step 6: Final answer
    x = 69,540.92

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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.