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Finding the Fourth Proportional to 480,714.99, 721,017.40 and 125,763.27

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Solution

The fourth proportional to 480,714.99, 721,017.40 and 125,763.27 is: 188,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,714.99 : 721,017.40 = 125,763.27 : x
  2. Step 2: Convert to fraction form
    480,714.99/721,017.40 = 125,763.27/x
  3. Step 3: Cross multiply
    480,714.99x = 721,017.40 × 125,763.27
  4. Step 4: Simplify right side
    480,714.99x = 90,677,505,950.90
  5. Step 5: Solve for x
    x = 90,677,505,950.90/480,714.99
  6. Step 6: Final answer
    x = 188,630.49

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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.