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Finding the Fourth Proportional to 147,997.60, 221,850.60 and 73,129.30

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Solution

The fourth proportional to 147,997.60, 221,850.60 and 73,129.30 is: 109,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,997.60 : 221,850.60 = 73,129.30 : x
  2. Step 2: Convert to fraction form
    147,997.60/221,850.60 = 73,129.30/x
  3. Step 3: Cross multiply
    147,997.60x = 221,850.60 × 73,129.30
  4. Step 4: Simplify right side
    147,997.60x = 16,223,779,082.58
  5. Step 5: Solve for x
    x = 16,223,779,082.58/147,997.60
  6. Step 6: Final answer
    x = 109,621.91

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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.