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Finding the Fourth Proportional to 69,913.40, 104,870.10 and 69,913.40

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Solution

The fourth proportional to 69,913.40, 104,870.10 and 69,913.40 is: 104,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,913.40 : 104,870.10 = 69,913.40 : x
  2. Step 2: Convert to fraction form
    69,913.40/104,870.10 = 69,913.40/x
  3. Step 3: Cross multiply
    69,913.40x = 104,870.10 × 69,913.40
  4. Step 4: Simplify right side
    69,913.40x = 7,331,825,249.34
  5. Step 5: Solve for x
    x = 7,331,825,249.34/69,913.40
  6. Step 6: Final answer
    x = 104,870.10

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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.