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Finding the Fourth Proportional to 217,044,462.40, 325,566,693.60 and 148,169,708.80

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Solution

The fourth proportional to 217,044,462.40, 325,566,693.60 and 148,169,708.80 is: 222,254,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,044,462.40 : 325,566,693.60 = 148,169,708.80 : x
  2. Step 2: Convert to fraction form
    217,044,462.40/325,566,693.60 = 148,169,708.80/x
  3. Step 3: Cross multiply
    217,044,462.40x = 325,566,693.60 × 148,169,708.80
  4. Step 4: Simplify right side
    217,044,462.40x = 48,239,122,185,690,832
  5. Step 5: Solve for x
    x = 48,239,122,185,690,832/217,044,462.40
  6. Step 6: Final answer
    x = 222,254,563.20

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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.