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Finding the Fourth Proportional to 71,016,902.46, 98,071,009.04 and 67,147,955.49

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Solution

The fourth proportional to 71,016,902.46, 98,071,009.04 and 67,147,955.49 is: 92,728,174.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,016,902.46 : 98,071,009.04 = 67,147,955.49 : x
  2. Step 2: Convert to fraction form
    71,016,902.46/98,071,009.04 = 67,147,955.49/x
  3. Step 3: Cross multiply
    71,016,902.46x = 98,071,009.04 × 67,147,955.49
  4. Step 4: Simplify right side
    71,016,902.46x = 6,585,267,749,386,953
  5. Step 5: Solve for x
    x = 6,585,267,749,386,953/71,016,902.46
  6. Step 6: Final answer
    x = 92,728,174.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.