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Finding the Fourth Proportional to 147,028,658.60, 220,542,987.90 and 147,028,658.60

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Solution

The fourth proportional to 147,028,658.60, 220,542,987.90 and 147,028,658.60 is: 220,542,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,028,658.60 : 220,542,987.90 = 147,028,658.60 : x
  2. Step 2: Convert to fraction form
    147,028,658.60/220,542,987.90 = 147,028,658.60/x
  3. Step 3: Cross multiply
    147,028,658.60x = 220,542,987.90 × 147,028,658.60
  4. Step 4: Simplify right side
    147,028,658.60x = 32,426,139,674,573,032
  5. Step 5: Solve for x
    x = 32,426,139,674,573,032/147,028,658.60
  6. Step 6: Final answer
    x = 220,542,987.90

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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.