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Finding the Fourth Proportional to 73,492.88, 101,420.04 and 39,958.80

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Solution

The fourth proportional to 73,492.88, 101,420.04 and 39,958.80 is: 55,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,492.88 : 101,420.04 = 39,958.80 : x
  2. Step 2: Convert to fraction form
    73,492.88/101,420.04 = 39,958.80/x
  3. Step 3: Cross multiply
    73,492.88x = 101,420.04 × 39,958.80
  4. Step 4: Simplify right side
    73,492.88x = 4,052,623,094.35
  5. Step 5: Solve for x
    x = 4,052,623,094.35/73,492.88
  6. Step 6: Final answer
    x = 55,143.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.