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Finding the Fourth Proportional to 162,806.40, 244,136.70 and 74,014.20

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Solution

The fourth proportional to 162,806.40, 244,136.70 and 74,014.20 is: 110,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,806.40 : 244,136.70 = 74,014.20 : x
  2. Step 2: Convert to fraction form
    162,806.40/244,136.70 = 74,014.20/x
  3. Step 3: Cross multiply
    162,806.40x = 244,136.70 × 74,014.20
  4. Step 4: Simplify right side
    162,806.40x = 18,069,582,541.14
  5. Step 5: Solve for x
    x = 18,069,582,541.14/162,806.40
  6. Step 6: Final answer
    x = 110,988.16

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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.