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Finding the Fourth Proportional to 15,172,361.20, 22,758,541.80 and 15,172,361.20

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Solution

The fourth proportional to 15,172,361.20, 22,758,541.80 and 15,172,361.20 is: 22,758,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,361.20 : 22,758,541.80 = 15,172,361.20 : x
  2. Step 2: Convert to fraction form
    15,172,361.20/22,758,541.80 = 15,172,361.20/x
  3. Step 3: Cross multiply
    15,172,361.20x = 22,758,541.80 × 15,172,361.20
  4. Step 4: Simplify right side
    15,172,361.20x = 345,300,816,574,898.12
  5. Step 5: Solve for x
    x = 345,300,816,574,898.12/15,172,361.20
  6. Step 6: Final answer
    x = 22,758,541.80

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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.