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Finding the Fourth Proportional to 80,096,731.80, 112,390,516.20 and 80,096,731.80

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Solution

The fourth proportional to 80,096,731.80, 112,390,516.20 and 80,096,731.80 is: 112,390,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096,731.80 : 112,390,516.20 = 80,096,731.80 : x
  2. Step 2: Convert to fraction form
    80,096,731.80/112,390,516.20 = 80,096,731.80/x
  3. Step 3: Cross multiply
    80,096,731.80x = 112,390,516.20 × 80,096,731.80
  4. Step 4: Simplify right side
    80,096,731.80x = 9,002,113,032,934,955
  5. Step 5: Solve for x
    x = 9,002,113,032,934,955/80,096,731.80
  6. Step 6: Final answer
    x = 112,390,516.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.