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Finding the Fourth Proportional to 481,686.64, 722,567.32 and 144,700.92

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Solution

The fourth proportional to 481,686.64, 722,567.32 and 144,700.92 is: 217,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,686.64 : 722,567.32 = 144,700.92 : x
  2. Step 2: Convert to fraction form
    481,686.64/722,567.32 = 144,700.92/x
  3. Step 3: Cross multiply
    481,686.64x = 722,567.32 × 144,700.92
  4. Step 4: Simplify right side
    481,686.64x = 104,556,155,604.18
  5. Step 5: Solve for x
    x = 104,556,155,604.18/481,686.64
  6. Step 6: Final answer
    x = 217,062.60

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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.