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Finding the Fourth Proportional to 162,368.82, 224,079.48 and 90,751.86

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Solution

The fourth proportional to 162,368.82, 224,079.48 and 90,751.86 is: 125,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,368.82 : 224,079.48 = 90,751.86 : x
  2. Step 2: Convert to fraction form
    162,368.82/224,079.48 = 90,751.86/x
  3. Step 3: Cross multiply
    162,368.82x = 224,079.48 × 90,751.86
  4. Step 4: Simplify right side
    162,368.82x = 20,335,629,597.83
  5. Step 5: Solve for x
    x = 20,335,629,597.83/162,368.82
  6. Step 6: Final answer
    x = 125,243.44

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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.