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Finding the Fourth Proportional to 93,323.10, 139,875.30 and 69,922.20

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Solution

The fourth proportional to 93,323.10, 139,875.30 and 69,922.20 is: 104,801.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.10 : 139,875.30 = 69,922.20 : x
  2. Step 2: Convert to fraction form
    93,323.10/139,875.30 = 69,922.20/x
  3. Step 3: Cross multiply
    93,323.10x = 139,875.30 × 69,922.20
  4. Step 4: Simplify right side
    93,323.10x = 9,780,388,701.66
  5. Step 5: Solve for x
    x = 9,780,388,701.66/93,323.10
  6. Step 6: Final answer
    x = 104,801.37

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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.