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Finding the Fourth Proportional to 162,145.95, 243,219.74 and 73,295.43

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Solution

The fourth proportional to 162,145.95, 243,219.74 and 73,295.43 is: 109,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,145.95 : 243,219.74 = 73,295.43 : x
  2. Step 2: Convert to fraction form
    162,145.95/243,219.74 = 73,295.43/x
  3. Step 3: Cross multiply
    162,145.95x = 243,219.74 × 73,295.43
  4. Step 4: Simplify right side
    162,145.95x = 17,826,895,061.31
  5. Step 5: Solve for x
    x = 17,826,895,061.31/162,145.95
  6. Step 6: Final answer
    x = 109,943.51

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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.