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Finding the Fourth Proportional to 417,862.50, 627,042.81 and 151,643.82

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Solution

The fourth proportional to 417,862.50, 627,042.81 and 151,643.82 is: 227,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,862.50 : 627,042.81 = 151,643.82 : x
  2. Step 2: Convert to fraction form
    417,862.50/627,042.81 = 151,643.82/x
  3. Step 3: Cross multiply
    417,862.50x = 627,042.81 × 151,643.82
  4. Step 4: Simplify right side
    417,862.50x = 95,087,167,011.93
  5. Step 5: Solve for x
    x = 95,087,167,011.93/417,862.50
  6. Step 6: Final answer
    x = 227,556.11

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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.