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Finding the Fourth Proportional to 80,820,335.40, 121,230,503.10 and 80,820,335.40

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Solution

The fourth proportional to 80,820,335.40, 121,230,503.10 and 80,820,335.40 is: 121,230,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820,335.40 : 121,230,503.10 = 80,820,335.40 : x
  2. Step 2: Convert to fraction form
    80,820,335.40/121,230,503.10 = 80,820,335.40/x
  3. Step 3: Cross multiply
    80,820,335.40x = 121,230,503.10 × 80,820,335.40
  4. Step 4: Simplify right side
    80,820,335.40x = 9,797,889,921,252,740
  5. Step 5: Solve for x
    x = 9,797,889,921,252,740/80,820,335.40
  6. Step 6: Final answer
    x = 121,230,503.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.