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Finding the Fourth Proportional to 162,912.10, 244,368.15 and 138,308.35

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Solution

The fourth proportional to 162,912.10, 244,368.15 and 138,308.35 is: 207,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,912.10 : 244,368.15 = 138,308.35 : x
  2. Step 2: Convert to fraction form
    162,912.10/244,368.15 = 138,308.35/x
  3. Step 3: Cross multiply
    162,912.10x = 244,368.15 × 138,308.35
  4. Step 4: Simplify right side
    162,912.10x = 33,798,155,619.05
  5. Step 5: Solve for x
    x = 33,798,155,619.05/162,912.10
  6. Step 6: Final answer
    x = 207,462.53

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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.