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Finding the Fourth Proportional to 162,699.66, 224,530.20 and 91,079.28

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Solution

The fourth proportional to 162,699.66, 224,530.20 and 91,079.28 is: 125,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,699.66 : 224,530.20 = 91,079.28 : x
  2. Step 2: Convert to fraction form
    162,699.66/224,530.20 = 91,079.28/x
  3. Step 3: Cross multiply
    162,699.66x = 224,530.20 × 91,079.28
  4. Step 4: Simplify right side
    162,699.66x = 20,450,048,954.26
  5. Step 5: Solve for x
    x = 20,450,048,954.26/162,699.66
  6. Step 6: Final answer
    x = 125,692.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.