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Finding the Fourth Proportional to 145,672.13, 218,508.26 and 40,492.01

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Solution

The fourth proportional to 145,672.13, 218,508.26 and 40,492.01 is: 60,738.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,672.13 : 218,508.26 = 40,492.01 : x
  2. Step 2: Convert to fraction form
    145,672.13/218,508.26 = 40,492.01/x
  3. Step 3: Cross multiply
    145,672.13x = 218,508.26 × 40,492.01
  4. Step 4: Simplify right side
    145,672.13x = 8,847,837,354.00
  5. Step 5: Solve for x
    x = 8,847,837,354.00/145,672.13
  6. Step 6: Final answer
    x = 60,738.03

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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.