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Finding the Fourth Proportional to 80,096,661.30, 112,390,417.50 and 80,096,661.30

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Solution

The fourth proportional to 80,096,661.30, 112,390,417.50 and 80,096,661.30 is: 112,390,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096,661.30 : 112,390,417.50 = 80,096,661.30 : x
  2. Step 2: Convert to fraction form
    80,096,661.30/112,390,417.50 = 80,096,661.30/x
  3. Step 3: Cross multiply
    80,096,661.30x = 112,390,417.50 × 80,096,661.30
  4. Step 4: Simplify right side
    80,096,661.30x = 9,002,097,203,863,092
  5. Step 5: Solve for x
    x = 9,002,097,203,863,092/80,096,661.30
  6. Step 6: Final answer
    x = 112,390,417.50

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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.