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Finding the Fourth Proportional to 265,860.85, 366,919.50 and 151,156.78

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Solution

The fourth proportional to 265,860.85, 366,919.50 and 151,156.78 is: 208,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,860.85 : 366,919.50 = 151,156.78 : x
  2. Step 2: Convert to fraction form
    265,860.85/366,919.50 = 151,156.78/x
  3. Step 3: Cross multiply
    265,860.85x = 366,919.50 × 151,156.78
  4. Step 4: Simplify right side
    265,860.85x = 55,462,370,139.21
  5. Step 5: Solve for x
    x = 55,462,370,139.21/265,860.85
  6. Step 6: Final answer
    x = 208,614.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.