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Finding the Fourth Proportional to 162,699.95, 225,878.34 and 157,828.41

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Solution

The fourth proportional to 162,699.95, 225,878.34 and 157,828.41 is: 219,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,699.95 : 225,878.34 = 157,828.41 : x
  2. Step 2: Convert to fraction form
    162,699.95/225,878.34 = 157,828.41/x
  3. Step 3: Cross multiply
    162,699.95x = 225,878.34 × 157,828.41
  4. Step 4: Simplify right side
    162,699.95x = 35,650,019,255.64
  5. Step 5: Solve for x
    x = 35,650,019,255.64/162,699.95
  6. Step 6: Final answer
    x = 219,115.13

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.