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Finding the Fourth Proportional to 480,682.92, 721,066.50 and 125,695.56

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Solution

The fourth proportional to 480,682.92, 721,066.50 and 125,695.56 is: 188,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,682.92 : 721,066.50 = 125,695.56 : x
  2. Step 2: Convert to fraction form
    480,682.92/721,066.50 = 125,695.56/x
  3. Step 3: Cross multiply
    480,682.92x = 721,066.50 × 125,695.56
  4. Step 4: Simplify right side
    480,682.92x = 90,634,857,514.74
  5. Step 5: Solve for x
    x = 90,634,857,514.74/480,682.92
  6. Step 6: Final answer
    x = 188,554.35

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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.