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Finding the Fourth Proportional to 218,566,602.40, 327,424,750.80 and 132,048,007.60

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Solution

The fourth proportional to 218,566,602.40, 327,424,750.80 and 132,048,007.60 is: 197,815,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,566,602.40 : 327,424,750.80 = 132,048,007.60 : x
  2. Step 2: Convert to fraction form
    218,566,602.40/327,424,750.80 = 132,048,007.60/x
  3. Step 3: Cross multiply
    218,566,602.40x = 327,424,750.80 × 132,048,007.60
  4. Step 4: Simplify right side
    218,566,602.40x = 43,235,785,982,066,504
  5. Step 5: Solve for x
    x = 43,235,785,982,066,504/218,566,602.40
  6. Step 6: Final answer
    x = 197,815,153.40

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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.