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Finding the Fourth Proportional to 145,596.88, 218,371.02 and 40,426.48

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Solution

The fourth proportional to 145,596.88, 218,371.02 and 40,426.48 is: 60,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,596.88 : 218,371.02 = 40,426.48 : x
  2. Step 2: Convert to fraction form
    145,596.88/218,371.02 = 40,426.48/x
  3. Step 3: Cross multiply
    145,596.88x = 218,371.02 × 40,426.48
  4. Step 4: Simplify right side
    145,596.88x = 8,827,971,672.61
  5. Step 5: Solve for x
    x = 8,827,971,672.61/145,596.88
  6. Step 6: Final answer
    x = 60,632.97

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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.