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Finding the Fourth Proportional to 69,103, 95,362.14 and 40,809.16

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Solution

The fourth proportional to 69,103, 95,362.14 and 40,809.16 is: 56,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,103 : 95,362.14 = 40,809.16 : x
  2. Step 2: Convert to fraction form
    69,103/95,362.14 = 40,809.16/x
  3. Step 3: Cross multiply
    69,103x = 95,362.14 × 40,809.16
  4. Step 4: Simplify right side
    69,103x = 3,891,648,829.20
  5. Step 5: Solve for x
    x = 3,891,648,829.20/69,103
  6. Step 6: Final answer
    x = 56,316.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.