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Finding the Fourth Proportional to 1,101,146.40, 1,545,147.90 and 1,101,146.40

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Solution

The fourth proportional to 1,101,146.40, 1,545,147.90 and 1,101,146.40 is: 1,545,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,146.40 : 1,545,147.90 = 1,101,146.40 : x
  2. Step 2: Convert to fraction form
    1,101,146.40/1,545,147.90 = 1,101,146.40/x
  3. Step 3: Cross multiply
    1,101,146.40x = 1,545,147.90 × 1,101,146.40
  4. Step 4: Simplify right side
    1,101,146.40x = 1,701,434,047,552.56
  5. Step 5: Solve for x
    x = 1,701,434,047,552.56/1,101,146.40
  6. Step 6: Final answer
    x = 1,545,147.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.