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Finding the Fourth Proportional to 162,271.70, 243,428.06 and 55,626.76

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Solution

The fourth proportional to 162,271.70, 243,428.06 and 55,626.76 is: 83,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,271.70 : 243,428.06 = 55,626.76 : x
  2. Step 2: Convert to fraction form
    162,271.70/243,428.06 = 55,626.76/x
  3. Step 3: Cross multiply
    162,271.70x = 243,428.06 × 55,626.76
  4. Step 4: Simplify right side
    162,271.70x = 13,541,114,270.89
  5. Step 5: Solve for x
    x = 13,541,114,270.89/162,271.70
  6. Step 6: Final answer
    x = 83,447.17

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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.