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Finding the Fourth Proportional to 10,114,907.80, 15,172,361.70 and 10,114,907.80

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Solution

The fourth proportional to 10,114,907.80, 15,172,361.70 and 10,114,907.80 is: 15,172,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,114,907.80 : 15,172,361.70 = 10,114,907.80 : x
  2. Step 2: Convert to fraction form
    10,114,907.80/15,172,361.70 = 10,114,907.80/x
  3. Step 3: Cross multiply
    10,114,907.80x = 15,172,361.70 × 10,114,907.80
  4. Step 4: Simplify right side
    10,114,907.80x = 153,467,039,703,751.25
  5. Step 5: Solve for x
    x = 153,467,039,703,751.25/10,114,907.80
  6. Step 6: Final answer
    x = 15,172,361.70

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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.