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Finding the Fourth Proportional to 10,203,218.70, 15,304,828.05 and 10,203,218.70

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Solution

The fourth proportional to 10,203,218.70, 15,304,828.05 and 10,203,218.70 is: 15,304,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203,218.70 : 15,304,828.05 = 10,203,218.70 : x
  2. Step 2: Convert to fraction form
    10,203,218.70/15,304,828.05 = 10,203,218.70/x
  3. Step 3: Cross multiply
    10,203,218.70x = 15,304,828.05 × 10,203,218.70
  4. Step 4: Simplify right side
    10,203,218.70x = 156,158,507,760,044.53
  5. Step 5: Solve for x
    x = 156,158,507,760,044.53/10,203,218.70
  6. Step 6: Final answer
    x = 15,304,828.05

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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.