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Finding the Fourth Proportional to 147,539.10, 220,980.60 and 114,150.90

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Solution

The fourth proportional to 147,539.10, 220,980.60 and 114,150.90 is: 170,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,539.10 : 220,980.60 = 114,150.90 : x
  2. Step 2: Convert to fraction form
    147,539.10/220,980.60 = 114,150.90/x
  3. Step 3: Cross multiply
    147,539.10x = 220,980.60 × 114,150.90
  4. Step 4: Simplify right side
    147,539.10x = 25,225,134,372.54
  5. Step 5: Solve for x
    x = 25,225,134,372.54/147,539.10
  6. Step 6: Final answer
    x = 170,972.54

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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.