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Finding the Fourth Proportional to 408,357.48, 612,536.03 and 124,046.93

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Solution

The fourth proportional to 408,357.48, 612,536.03 and 124,046.93 is: 186,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,357.48 : 612,536.03 = 124,046.93 : x
  2. Step 2: Convert to fraction form
    408,357.48/612,536.03 = 124,046.93/x
  3. Step 3: Cross multiply
    408,357.48x = 612,536.03 × 124,046.93
  4. Step 4: Simplify right side
    408,357.48x = 75,983,214,035.89
  5. Step 5: Solve for x
    x = 75,983,214,035.89/408,357.48
  6. Step 6: Final answer
    x = 186,070.34

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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.