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Finding the Fourth Proportional to 93,166.10, 139,319.94 and 69,195.70

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Solution

The fourth proportional to 93,166.10, 139,319.94 and 69,195.70 is: 103,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,166.10 : 139,319.94 = 69,195.70 : x
  2. Step 2: Convert to fraction form
    93,166.10/139,319.94 = 69,195.70/x
  3. Step 3: Cross multiply
    93,166.10x = 139,319.94 × 69,195.70
  4. Step 4: Simplify right side
    93,166.10x = 9,640,340,075.66
  5. Step 5: Solve for x
    x = 9,640,340,075.66/93,166.10
  6. Step 6: Final answer
    x = 103,474.77

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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.