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Finding the Fourth Proportional to 162,295.49, 223,963.62 and 90,676.01

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Solution

The fourth proportional to 162,295.49, 223,963.62 and 90,676.01 is: 125,130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,295.49 : 223,963.62 = 90,676.01 : x
  2. Step 2: Convert to fraction form
    162,295.49/223,963.62 = 90,676.01/x
  3. Step 3: Cross multiply
    162,295.49x = 223,963.62 × 90,676.01
  4. Step 4: Simplify right side
    162,295.49x = 20,308,127,446.76
  5. Step 5: Solve for x
    x = 20,308,127,446.76/162,295.49
  6. Step 6: Final answer
    x = 125,130.57

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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.