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Finding the Fourth Proportional to 88,978,856.80, 133,468,285.20 and 69,868,559.20

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Solution

The fourth proportional to 88,978,856.80, 133,468,285.20 and 69,868,559.20 is: 104,802,838.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,978,856.80 : 133,468,285.20 = 69,868,559.20 : x
  2. Step 2: Convert to fraction form
    88,978,856.80/133,468,285.20 = 69,868,559.20/x
  3. Step 3: Cross multiply
    88,978,856.80x = 133,468,285.20 × 69,868,559.20
  4. Step 4: Simplify right side
    88,978,856.80x = 9,325,236,785,818,684
  5. Step 5: Solve for x
    x = 9,325,236,785,818,684/88,978,856.80
  6. Step 6: Final answer
    x = 104,802,838.80

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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.