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Finding the Fourth Proportional to 162,530.10, 243,795.15 and 103,626.90

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Solution

The fourth proportional to 162,530.10, 243,795.15 and 103,626.90 is: 155,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,530.10 : 243,795.15 = 103,626.90 : x
  2. Step 2: Convert to fraction form
    162,530.10/243,795.15 = 103,626.90/x
  3. Step 3: Cross multiply
    162,530.10x = 243,795.15 × 103,626.90
  4. Step 4: Simplify right side
    162,530.10x = 25,263,735,629.54
  5. Step 5: Solve for x
    x = 25,263,735,629.54/162,530.10
  6. Step 6: Final answer
    x = 155,440.35

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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.