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Finding the Fourth Proportional to 147,028,659.60, 220,542,989.40 and 147,028,659.60

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Solution

The fourth proportional to 147,028,659.60, 220,542,989.40 and 147,028,659.60 is: 220,542,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,028,659.60 : 220,542,989.40 = 147,028,659.60 : x
  2. Step 2: Convert to fraction form
    147,028,659.60/220,542,989.40 = 147,028,659.60/x
  3. Step 3: Cross multiply
    147,028,659.60x = 220,542,989.40 × 147,028,659.60
  4. Step 4: Simplify right side
    147,028,659.60x = 32,426,140,115,659,008
  5. Step 5: Solve for x
    x = 32,426,140,115,659,008/147,028,659.60
  6. Step 6: Final answer
    x = 220,542,989.40

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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.