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Finding the Fourth Proportional to 161,776.40, 242,664.60 and 136,115.60

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Solution

The fourth proportional to 161,776.40, 242,664.60 and 136,115.60 is: 204,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,776.40 : 242,664.60 = 136,115.60 : x
  2. Step 2: Convert to fraction form
    161,776.40/242,664.60 = 136,115.60/x
  3. Step 3: Cross multiply
    161,776.40x = 242,664.60 × 136,115.60
  4. Step 4: Simplify right side
    161,776.40x = 33,030,437,627.76
  5. Step 5: Solve for x
    x = 33,030,437,627.76/161,776.40
  6. Step 6: Final answer
    x = 204,173.40

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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.