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Finding the Fourth Proportional to 104,345,312.80, 156,517,969.20 and 104,345,312.80

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Solution

The fourth proportional to 104,345,312.80, 156,517,969.20 and 104,345,312.80 is: 156,517,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,345,312.80 : 156,517,969.20 = 104,345,312.80 : x
  2. Step 2: Convert to fraction form
    104,345,312.80/156,517,969.20 = 104,345,312.80/x
  3. Step 3: Cross multiply
    104,345,312.80x = 156,517,969.20 × 104,345,312.80
  4. Step 4: Simplify right side
    104,345,312.80x = 16,331,916,454,994,764
  5. Step 5: Solve for x
    x = 16,331,916,454,994,764/104,345,312.80
  6. Step 6: Final answer
    x = 156,517,969.20

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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.