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Finding the Fourth Proportional to 162,634.20, 243,605.70 and 134,986.20

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Solution

The fourth proportional to 162,634.20, 243,605.70 and 134,986.20 is: 202,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,634.20 : 243,605.70 = 134,986.20 : x
  2. Step 2: Convert to fraction form
    162,634.20/243,605.70 = 134,986.20/x
  3. Step 3: Cross multiply
    162,634.20x = 243,605.70 × 134,986.20
  4. Step 4: Simplify right side
    162,634.20x = 32,883,407,741.34
  5. Step 5: Solve for x
    x = 32,883,407,741.34/162,634.20
  6. Step 6: Final answer
    x = 202,192.45

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1.5x scale

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.