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Finding the Fourth Proportional to 69,984,009.60, 104,976,014.40 and 65,728,982.40

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Solution

The fourth proportional to 69,984,009.60, 104,976,014.40 and 65,728,982.40 is: 98,593,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,009.60 : 104,976,014.40 = 65,728,982.40 : x
  2. Step 2: Convert to fraction form
    69,984,009.60/104,976,014.40 = 65,728,982.40/x
  3. Step 3: Cross multiply
    69,984,009.60x = 104,976,014.40 × 65,728,982.40
  4. Step 4: Simplify right side
    69,984,009.60x = 6,899,966,602,919,747
  5. Step 5: Solve for x
    x = 6,899,966,602,919,747/69,984,009.60
  6. Step 6: Final answer
    x = 98,593,473.60

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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.