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Finding the Fourth Proportional to 68,477,973.76, 102,652,661.76 and 23,007,969.28

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Solution

The fourth proportional to 68,477,973.76, 102,652,661.76 and 23,007,969.28 is: 34,490,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,477,973.76 : 102,652,661.76 = 23,007,969.28 : x
  2. Step 2: Convert to fraction form
    68,477,973.76/102,652,661.76 = 23,007,969.28/x
  3. Step 3: Cross multiply
    68,477,973.76x = 102,652,661.76 × 23,007,969.28
  4. Step 4: Simplify right side
    68,477,973.76x = 2,361,829,288,284,311
  5. Step 5: Solve for x
    x = 2,361,829,288,284,311/68,477,973.76
  6. Step 6: Final answer
    x = 34,490,350.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.