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Finding the Fourth Proportional to 330,987.60, 496,686.60 and 173,329.20

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Solution

The fourth proportional to 330,987.60, 496,686.60 and 173,329.20 is: 260,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,987.60 : 496,686.60 = 173,329.20 : x
  2. Step 2: Convert to fraction form
    330,987.60/496,686.60 = 173,329.20/x
  3. Step 3: Cross multiply
    330,987.60x = 496,686.60 × 173,329.20
  4. Step 4: Simplify right side
    330,987.60x = 86,090,291,028.72
  5. Step 5: Solve for x
    x = 86,090,291,028.72/330,987.60
  6. Step 6: Final answer
    x = 260,101.26

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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.