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Finding the Fourth Proportional to 140,801.60, 211,059.36 and 47,230.40

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Solution

The fourth proportional to 140,801.60, 211,059.36 and 47,230.40 is: 70,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,801.60 : 211,059.36 = 47,230.40 : x
  2. Step 2: Convert to fraction form
    140,801.60/211,059.36 = 47,230.40/x
  3. Step 3: Cross multiply
    140,801.60x = 211,059.36 × 47,230.40
  4. Step 4: Simplify right side
    140,801.60x = 9,968,417,996.54
  5. Step 5: Solve for x
    x = 9,968,417,996.54/140,801.60
  6. Step 6: Final answer
    x = 70,797.62

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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.