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Finding the Fourth Proportional to 9,344,409.80, 13,985,121.90 and 9,344,409.80

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Solution

The fourth proportional to 9,344,409.80, 13,985,121.90 and 9,344,409.80 is: 13,985,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,344,409.80 : 13,985,121.90 = 9,344,409.80 : x
  2. Step 2: Convert to fraction form
    9,344,409.80/13,985,121.90 = 9,344,409.80/x
  3. Step 3: Cross multiply
    9,344,409.80x = 13,985,121.90 × 9,344,409.80
  4. Step 4: Simplify right side
    9,344,409.80x = 130,682,710,136,554.64
  5. Step 5: Solve for x
    x = 130,682,710,136,554.64/9,344,409.80
  6. Step 6: Final answer
    x = 13,985,121.90

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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.