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Finding the Fourth Proportional to 354,655.20, 532,136.40 and 167,570.40

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Solution

The fourth proportional to 354,655.20, 532,136.40 and 167,570.40 is: 251,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,655.20 : 532,136.40 = 167,570.40 : x
  2. Step 2: Convert to fraction form
    354,655.20/532,136.40 = 167,570.40/x
  3. Step 3: Cross multiply
    354,655.20x = 532,136.40 × 167,570.40
  4. Step 4: Simplify right side
    354,655.20x = 89,170,309,402.56
  5. Step 5: Solve for x
    x = 89,170,309,402.56/354,655.20
  6. Step 6: Final answer
    x = 251,428.17

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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.