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Finding the Fourth Proportional to 351,065.76, 526,121.60 and 148,493.60

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Solution

The fourth proportional to 351,065.76, 526,121.60 and 148,493.60 is: 222,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,065.76 : 526,121.60 = 148,493.60 : x
  2. Step 2: Convert to fraction form
    351,065.76/526,121.60 = 148,493.60/x
  3. Step 3: Cross multiply
    351,065.76x = 526,121.60 × 148,493.60
  4. Step 4: Simplify right side
    351,065.76x = 78,125,690,421.76
  5. Step 5: Solve for x
    x = 78,125,690,421.76/351,065.76
  6. Step 6: Final answer
    x = 222,538.62

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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.