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Finding the Fourth Proportional to 162,053.18, 243,079.76 and 43,724.52

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Solution

The fourth proportional to 162,053.18, 243,079.76 and 43,724.52 is: 65,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,053.18 : 243,079.76 = 43,724.52 : x
  2. Step 2: Convert to fraction form
    162,053.18/243,079.76 = 43,724.52/x
  3. Step 3: Cross multiply
    162,053.18x = 243,079.76 × 43,724.52
  4. Step 4: Simplify right side
    162,053.18x = 10,628,545,000.15
  5. Step 5: Solve for x
    x = 10,628,545,000.15/162,053.18
  6. Step 6: Final answer
    x = 65,586.77

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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.