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Finding the Fourth Proportional to 162,803.93, 244,363.50 and 78,623.19

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Solution

The fourth proportional to 162,803.93, 244,363.50 and 78,623.19 is: 118,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,803.93 : 244,363.50 = 78,623.19 : x
  2. Step 2: Convert to fraction form
    162,803.93/244,363.50 = 78,623.19/x
  3. Step 3: Cross multiply
    162,803.93x = 244,363.50 × 78,623.19
  4. Step 4: Simplify right side
    162,803.93x = 19,212,637,889.57
  5. Step 5: Solve for x
    x = 19,212,637,889.57/162,803.93
  6. Step 6: Final answer
    x = 118,010.90

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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.